Registration Dossier
Registration Dossier
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EC number: 830-217-3 | CAS number: 1393932-71-2
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
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- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 11 April, 2012 to 06 June, 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- yes
- Remarks:
- On Day 5 a temporary breakdown in the aeration (< 1 d) was noted. On Day 4 and 6 the system was functioning correctly. The study integrity was not adversely affected by the deviation.
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Deviations:
- yes
- Remarks:
- On Day 5 a temporary breakdown in the aeration (< 1 d) was noted. On Day 4 and 6 the system was functioning correctly. The study integrity was not adversely affected by the deviation.
- Qualifier:
- according to guideline
- Guideline:
- ISO DIS 9439 (Ultimate Aerobic Biodegradability - Method by Analysis of Released Carbon Dioxide)
- Deviations:
- yes
- Remarks:
- On Day 5 a temporary breakdown in the aeration (< 1 d) was noted. On Day 4 and 6 the system was functioning correctly. The study integrity was not adversely affected by the deviation.
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Source: The source of test organisms was activated sludge freshly obtained from a municipal sewage treatment plant: 'Waterschap Aa en Maas', 's-Hertogenbosch, The Netherlands, receiving predominantly domestic sewage.
Treatment: The freshly obtained sludge was kept under continuous aeration until further treatment. The concentration of suspended solids was 3.1 g/L in the concentrated sludge (information obtained from the municipal sewage treatment plant). Before use, the sludge was allowed to settle (45 min) and the supernatant liquid was used as inoculum at the amount of 10 mL/L of mineral medium. - Duration of test (contact time):
- ca. 28 d
- Initial conc.:
- ca. 17.5 mg/L
- Based on:
- test mat.
- Initial conc.:
- 12 mg/L
- Based on:
- other: Total organic Carbon (TOC)
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST CONDITIONS
- Composition of medium: 1 L mineral medium contains: 10 mL of solution (A), 1 mL of solutions (B) to (D) and Milli-RO water
Stock solutions of mineral components
A) 8.50 g KH2PO4; 21.75 g K2HPO4; 67.20 g Na2HPO4.12H2O; 0.50 g NH4Cl; dissolved in Milli-Q water and made up to 1 L, pH 7.4 ± 0.2
B) 22.50 g MgSO4.7H2O dissolved in Milli-Q water and made up to 1 L.
C) 36.40 g CaCl2.2H2O dissolved in Milli-Q water and made up to 1 L.
D) 0.25 g FeCl3.6H2O dissolved in Milli-Q water and made up to 1 L.
- Test temperature: between 21.8 and 22.3°C.
- pH:
At t=0 d: 7.4 - 7.6
At t=28 d: 7.5 – 7.9
- pH adjusted: only before the start of the test from 7.7-7.8 to 7.4-7.6 (adjusted using 1 N HCl).
- Aeration of dilution water: Not before the test, the test is aerated continously
- Suspended solids concentration: The concentration of suspended solids was 3.1 g/L in the concentrated sludge (information obtained from the municipal sewage treatment plant). Before use, the sludge was allowed to settle (45 min) and the supernatant liquid was used as inoculum at the amount of 10 mL/L of mineral medium.
- Continuous darkness: Yes
TEST SYSTEM
- Culturing apparatus: 2 L all-glass brown coloured bottles
- Number of culture flasks/concentration:
Test suspension: Containing test substance and inoculum (2 bottles).
Inoculum blank: Containing only inoculum (2 bottles)
Positive control: Containing reference substance and inoculum (1 bottle).
Toxicity control: Containing test substance, reference substance and inoculum (1 bottle).
- Method used to create aerobic conditions:
Synthetic air (a mixture of oxygen (ca. 20%) and nitrogen (ca. 80%)) was sparged through the solutions at a rate of approx 1-2 bubbles per sec (ca. 30-100 mL/min).
- Test performed in open system: Yes
- Details of trap for CO2 and volatile organics if used:
CO2 was trapped in barium hydroxide solution. The amount of CO2 produced was determined by titrating the remaining Ba(OH)2 with 0.05 M standardized HCl (1:20 dilution from 1 M HCl (Titrisol® ampul). Titrations were made every second or third day during the first 10 d, and thereafter at least every fifth day until the 28th d, for the inoculum blank and test suspension. Titrations for the positive and toxicity control were made at least 14 d.
SAMPLING
- Sampling frequency: Titration were made on Day: 3, 6, 8, 10, 14, 17, 22, 27 and 29
- Sampling method: Titration of the whole volume of CO2-absorber
CONTROL AND BLANK SYSTEM
- Inoculum blank: Yes
- Abiotic sterile control: No
- Toxicity control: Yes - Reference substance:
- acetic acid, sodium salt
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 4
- Sampling time:
- 29 d
- Remarks on result:
- other: HCl added on Day 28 (last CO2 measurement on Day 29)
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 14
- Sampling time:
- 29 d
- Remarks on result:
- other: HCl added on Day 28 (last CO2 measurement on Day 29)
- Details on results:
- The relative biodegradation values calculated from the measurements performed during the test period revealed 4 and 14% biodegradation of the test substance for the duplicate bottles tested. Thus, the criterion for ready biodegradability was not met. In the toxicity control more than 25% biodegradation occurred within 14 d (39%, based on ThCO2). Therefore, the test substance was assumed not to inhibit microbial activity.
- Results with reference substance:
- The positive control substance was biodegraded by at least 60% (81%) within 14 d.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Under the conditions of the modified Sturm test, the test substance was not readily biodegradable.
- Executive summary:
The ready biodegradability of the test substance was assessed using the CO2 evolution (modified Sturm) test according to OECD Guideline 301B, in compliance with GLP. In addition, the procedures were designed to meet the test methods of the Commission Regulation (EC) No. 440/2008 of 30 May 2008, Publication No. L142, Part C.4-C and the ISO International Standard 9439, 1999 and ISO Standard 10634, 1995. The substance was tested in duplicate at approximately 17.5 mg/L, corresponding to 12 mg total organic carbon (TOC)/L, during 28 d. Based on the TOC content, the theoretical CO2 demand (ThCO2) of the test substance was calculated to be 2.52 mg CO2/mg. The relative biodegradation values revealed 4 and 14% biodegradation of the test substance for the duplicate bottles tested. Thus, the criterion for ready biodegradability was not met. In conclusion, the test substance is not considered to be readily biodegradable in this study (Desmares-Koopmans, 2012).
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From16 July , 2014 to 15 September, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test)
- Deviations:
- yes
- Remarks:
- minor: Ammonium chloride was omitted from the medium to prevent oxygen consumption due to nitrification (omission does not result in nitrogen limitation as shown by the biodegradation of the reference compound).
- Qualifier:
- according to guideline
- Guideline:
- ISO DIS 9408 (Ultimate Aerobic Biodegradability - Method by Determining the Oxygen Demand in a Closed Respirometer)
- Deviations:
- yes
- Remarks:
- minor: Ammonium chloride was omitted from the medium to prevent oxygen consumption due to nitrification (omission does not result in nitrogen limitation as shown by the biodegradation of the reference compound).
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- yes
- Remarks:
- minor: Ammonium chloride was omitted from the medium to prevent oxygen consumption due to nitrification (omission does not result in nitrogen limitation as shown by the biodegradation of the reference compound).
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- River water was sampled from the Rhine near Heveadorp, The Netherlands (10-07-2014). The nearest plant (Arnhem-Zuid) treating domestic waste water biologically was 3 km upstream. The river water was aerated for 7 d before use to reduce the endogenous respiration. River water without particles was used as inoculum. The particles were removed by sedimentation after 1 d while moderately aerating. The inoculum was not pre-adapted to the test substance.
- Duration of test (contact time):
- ca. 60 d
- Initial conc.:
- 4 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- Test bottles
The test was performed in 0.30 L BOD (biological oxygen demand) bottles with glass stoppers.
Nutrients, stocks and administration
The river water used in the Closed Bottle test was spiked per liter of water with 8.5 mg KH2PO4, 21.75 mg K2HPO4, 33.3 mg Na2HPO4.2H2O, 22.5 mgMgSO4.7H2O, 27.5 mg CaCl2, 0.25 mg FeCl3.6H2O. Ammonium chloride was not added to the river water to prevent nitrification. Test substance was administered using a stock emulsion prepared in deionized water with polyalkoxylate alkylphenol both at a concentration of 1.0 g/L. Additional control bottles contained polyalkoxylate alkylphenol. Sodium acetate was added to the bottles using a stock solution of 1.0 g/L.
Test procedures
Use was made of 10 bottles containing only river water, 6 bottles containing river water and sodium acetate, 10 bottles containing river water with test substance and surfactant, and 10 bottles containing river water with surfactant. The concentrations of the test substance, surfactant and sodium acetate in the bottles were 4.0, 4.0 and 6.7 mg/L, respectively. The zero time bottles were immediately analyzed for dissolved oxygen using an oxygen electrode. The remaining bottles were closed and incubated in the dark. Two duplicate bottles of all series were withdrawn for analyses of the dissolved oxygen concentration at Day 7, 14, 21, and 28. The Closed bottle test was prolonged by measuring the course of the oxygen decrease in the bottles of Day 28 using a special funnel and oxygen electrode. - Reference substance:
- acetic acid, sodium salt
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 25
- Sampling time:
- 28 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 46
- Sampling time:
- 60 d
- Details on results:
- Theoretical oxygen demand (ThOD)
The calculated theoretical oxygen demand (ThOD) of the main component was 1.9 mg/mg. All other components present in the test substance (information of the sponsor) do have comparable ThODs. The ThOD of sodium acetate was 0.8 mg/mg.
Toxicity
Inhibition of the degradation of a well-degradable compound, sodium acetate by the test substance in the closed bottle test was not determined because possible toxicity of test substance to microorganisms degrading acetate is not relevant. Inhibition of the endogenous respiration of the inoculum by the test substance was not detected. Therefore, no inhibition of the biodegradation due to the "high" initial concentration of the test substance is expected.
Test conditions
The pH of the media was 8.0 at the start of the test. The pH of the medium at Day 28 was 7.9 (controls) and 7.8 (test). Temperatures were within the prescribed temperature range of 22 to 24°C.
Validity of the test
The validity of the test is demonstrated by an endogenous respiration of 1.5 mg/L at Day 28. Furthermore, the differences of the replicate values at Day 28 were less than 20%. The biodegradation percentage of the reference substance, sodium acetate, at Day 14 was 83. Finally, the validity of the test was shown by oxygen concentrations >0.5 mg/L in all bottles during the test period.
Biodegradability
The test substance was biodegraded by 25% at Day 28 in the Closed Bottle test. In the prolonged Closed Bottle test this substance was biodegraded by 46% at Day 60. These results demonstrate that the test substance is inherently biodegradable. - Results with reference substance:
- The biodegradation percentage of the reference substance, sodium acetate, at Day 14 was 83.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: Not readily biodegradable, but results on Day 60 indicate inherent biodegradation potential
- Conclusions:
- Under the conditions of the study, the test substance is not readily biodegradable, but can be considered to be inherently biodegradable.
- Executive summary:
A study was conducted to determine the inherent biodegradability of the test substance according to an extended version of OECD Guideline 301D (prolonged closed bottle test) , in compliance with GLP. The test was performed in 0.30 L BOD (biological oxygen demand) bottles with glass stoppers. There were 10 bottles containing only river water, 6 bottles containing river water and sodium acetate, 10 bottles containing river water with test substance and surfactant, and 10 bottles containing river water with surfactant. The concentrations of test substance, surfactant and sodium acetate in the bottles were 4.0, 4.0 and 6.7 mg/L, respectively. No reduction in the endogenous respiration was observed at Day 7. The test substance was therefore considered to be non-inhibitory to the inoculum. The test was valid, as shown by an endogenous respiration of 1.5 mg/L and by the total mineralization of the reference compound, sodium acetate. Sodium acetate was degraded by 83% of its theoretical oxygen demand after 14 d. Oxygen concentrations remained >0.5 mg/L in all bottles during the test period. The test substance was biodegraded by 25% at Day 28 and by 46% at Day 60. Under the conditions of the study, the test substance can therefore be considered inherently biodegradable (Ginkel, 2014).
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- QSAR prediction from a well-known and acknowledged tool. See below under ''attached background material section' for methodology and QPRF.
- Qualifier:
- according to guideline
- Guideline:
- other: REACH guidance on QSARs: Chapter R.6. QSARs and grouping of chemicals
- Principles of method if other than guideline:
- Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation), the primary and ultimate half-life values were predicted for the individual constituents followed by the determination of an overall weighted-average value based on mole fractions.
- Specific details on test material used for the study:
- Input data for the model: SMILES of the individual constituents:
1) di-TMPTTA: CCC(COCC(CC)(COC(=O)C=C)COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C
2) dimer di-TMPTA + di-TMPTTA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
3) di-TMPTA: CCC(CO)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
4) di-TMPTTA + AA: CCC(COCC(CC)(COC(=O)C=C)COC(=O)C=C)(COC(=O)CCOC(=O)C=C)COC(=O)C=C
5) dimer di-TMPTA + di-TMPTA: CCC(CO)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)CCOCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
6) dimer di-TMPTA + di-TMPTTA + AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
7) Trimer AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
8) di-TMPDA: CCC(CO)(COCC(CC)(CO)COC(=O)C=C)COC(=O)C=C
9) dimer di-TMPTA + di-TMPDA: CCC(CO)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(CO)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
10) Trimer AA + AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
11) di-TMPTA + AA: CCC(CO)(COCC(CC)(COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C
12) di-TMPMA: CCC(CO)(CO)COCC(CC)(CO)COC(=O)C=C - Key result
- Parameter:
- half-life in days (QSAR/QSPR)
- Remarks:
- Primary half-life
- Value:
- ca. 1 - <= 6.51
- Remarks on result:
- other: weighted average: 4.5 days, according to CATALOGIC 301C v.12.17
- Key result
- Parameter:
- half-life in days (QSAR/QSPR)
- Remarks:
- Ultimate half-life
- Value:
- >= 39 - <= 113
- Remarks on result:
- other: weighted average: 54.5 days, according to CATALOGIC 301C v.12.17
- Details on results:
- For detailed results and domain evaluation, kindly refer the attached QPRF in attached background material section of IUCLID.
- Validity criteria fulfilled:
- not applicable
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The predicted primary half-life values of the individual constituents ranged from <1 to 6.51 days while ultimate half-life values ranged from 39 to 113 days.
- Executive summary:
The ready biodegradation and half-life of the test substance was predicted using the CATALOGIC 301C v.12.17. Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation) primary and ultimate half-life values were predicted for the individual constituents followed by the determination of an overall weighted average using the mole fractions. SMILES codes were used as the input parameter. The predicted primary half-life values of the individual constituents ranged from <1 to 6.51 days, leading to a weighted average half-life value of 4.5 days for the test substance. Whereas the predicted ultimate half-life values of the individual constituents ranged from 39 to 113 days, leading to a weighted average half-life value of 54.5 days for the test substance. All the QSAR predictions were within the domain of the QSAR model (LMC, 2018). According to the ECHA Guidance Chapter R.11, June 2017,the primary half-life values for the different constituents indicates that the test substance is not persistent.
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- QSAR prediction from a well-known and acknowledged tool. See below under ''attached background material section' for methodology and QPRF.
- Qualifier:
- according to guideline
- Guideline:
- other: REACH guidance on QSARs: Chapter R.6. QSARs and grouping of chemicals
- Principles of method if other than guideline:
- Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation), the primary and ultimate half-life values were predicted for the individual constituents followed by the determination of an overall weighted-average value based on mole fractions.
- Specific details on test material used for the study:
- Input data for the model: SMILES of the individual constituents:
1) di-TMPTTA: CCC(COCC(CC)(COC(=O)C=C)COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C
2) dimer di-TMPTA + di-TMPTTA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
3) di-TMPTA: CCC(CO)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
4) di-TMPTTA + AA: CCC(COCC(CC)(COC(=O)C=C)COC(=O)C=C)(COC(=O)CCOC(=O)C=C)COC(=O)C=C
5) dimer di-TMPTA + di-TMPTA: CCC(CO)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)CCOCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
6) dimer di-TMPTA + di-TMPTTA + AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
7) Trimer AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
8) di-TMPDA: CCC(CO)(COCC(CC)(CO)COC(=O)C=C)COC(=O)C=C
9) dimer di-TMPTA + di-TMPDA: CCC(CO)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(CO)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
10) Trimer AA + AA: CCC(COCCC(=O)OCC(CC)(COCC(CC)(COCCC(=O)OCC(CC)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C)(COCC(CC)(COC(=O)C=C)COC(=O)C=C)COC(=O)C=C
11) di-TMPTA + AA: CCC(CO)(COCC(CC)(COC(=O)CCOC(=O)C=C)COC(=O)C=C)COC(=O)C=C
12) di-TMPMA: CCC(CO)(CO)COCC(CC)(CO)COC(=O)C=C - Key result
- Parameter:
- half-life in days (QSAR/QSPR)
- Remarks:
- Primary half-life
- Value:
- ca. 1 - <= 1.13
- Remarks on result:
- other: weighted average: 1 day; according to CATALOGIC Kinetic 301F v.15.18
- Key result
- Parameter:
- half-life in days (QSAR/QSPR)
- Remarks:
- Ultimate half-life
- Value:
- >= 30 - <= 3 650
- Remarks on result:
- other: weighted average: 155.84 days; according to CATALOGIC Kinetic 301F v.15.18
- Details on results:
- For detailed results and domain evaluation, kindly refer the attached QPRF in attached background material section of IUCLID.
- Conclusions:
- The predicted primary half-life values of the individual constituents ranged from <1 to 1.13 days while the ultimate half-life values ranged from 30 to 3650 days.
- Executive summary:
The ready biodegradation and half-life of the test substance was predicted using the CATALOGIC Kinetic 301F v.15.18. Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation) half-life values were predicted for the individual constituents followed by the determination of an overall weighted average using the mole fractions. SMILES codes were used as the input parameter. The predicted primary half-life values of the individual constituents ranged from <1 to 1.13 days, leading to a weighted average half-life value of 1 day for the test substance. Whereas the predicted ultimate half-life values of the individual constituents ranged from 30 to 3650 days, leading to a weighted average half-life value of 155.8 days for the test substance. Except the trimers (which exceeded the molecular weight parameter), all other constituents were within the domain criteria defined in the QSAR model. Therefore, the predictions for the trimers are considered to be less accurate or reliable with restrictions (LMC, 2022). According to the ECHA Guidance Chapter R.11, June 2017, the primary half-life values for the different constituents indicates that the test substance is not persistent.
Referenceopen allclose all
Theoretical CO2 production: The TOC of the test substance was determined to be 69%. ThCO2 was calculated to be 2.52 mg CO2/mg. The ThCO2 of sodium acetate was calculated to be 1.07 mg CO2/mg.
Table 1: Oxygen consumption (mg/L) and the percentages biodegradation of the test Substance (BOD/ThOD) and reference substance (BOD/ThOD) in the Closed Bottle test
Time (d) |
Oxygen consumption (mg/L) |
Biodegradation (%) |
||
Test substance |
Reference substance |
Test substance |
Reference substance |
|
0 |
0.0 |
0.0 |
0 |
0 |
7 |
0.3 |
4.2 |
4 |
78 |
14 |
0.4 |
4.5 |
5 |
83 |
21 |
0.8 |
|
11 |
|
28 |
1.8 |
|
25 |
|
42 |
1.8 |
|
25 |
|
60 |
3.5 |
|
46 |
|
Results:
Primary half-life:
Constituent (acronyms) | Boundary composition (% w/w) | Mole fraction Xi = (mi/Mi)/∑ (mi/Mi) | CATALOGIC 301C primary half-life (days) |
CATALOGIC 301C primary half-life (days) x xi |
Domain evaluation |
di-TMPTTA | 20-70 | 0.51 | 5.95 | 3.02 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA | 0-15 | 0.08 | 6.51 | 0.49 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA | 2-40 | 0.13 | 1 | 0.13 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTTA + AA | 0-15 | 0.10 | 5.28 | 0.54 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTA | 0-12 | 0.03 | 1 | 0.03 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA + AA | 0-10 | 0.03 | 3.15 | 0.09 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA | 0-10 | 0.02 | 3.55 | 0.08 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPDA | 0-14 | 0.03 | 1 | 0.03 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPDA | 0-10 | 0.01 | 1 | 0.01 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA + AA | 0-5 | 0.01 | 2.24 | 0.03 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA + AA | 0-5 | 0.02 | 1 | 0.02 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPMA | 0-5 | 0.02 | 1 | 0.02 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Weighted average (WA) | 4.5 |
Ultimate half-life:
Constituent (acronyms) | Boundary composition (% w/w) | Mole fraction Xi = (mi/Mi)/∑ (mi/Mi) | CATALOGIC 301C ultimate half-life | CATALOGIC 301C Ultimate half-life (in days) | CATALOGIC 301C Ultimate half-life (in days)*xi | Domain evaluation |
di-TMPTTA | 20-70 | 0.51 | 1m 14d | 44 | 22.33 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA | 0-15 | 0.08 | 2m 20d | 80 | 6.01 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA | 2-40 | 0.13 | 1m 24d | 54 | 7.21 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTTA + AA | 0-15 | 0.10 | 1m 9d | 39 | 3.99 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTA | 0-12 | 0.03 | 3m 2d | 92 | 3.07 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA + AA | 0-10 | 0.03 | 2m 9d | 69 | 2.00 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA | 0-10 | 0.02 | 3m 7d | 97 | 2.07 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPDA | 0-14 | 0.03 | 2m 14d | 74 | 2.27 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPDA | 0-10 | 0.01 | 3m 8d | 98 | 1.40 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA + AA | 0-5 | 0.01 | 2m 30d | 90 | 1.09 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA + AA | 0-5 | 0.02 | 1m 14d | 44 | 1.00 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPMA | 0-5 | 0.02 | 3m 23d | 113 | 2.04 | In domain for structure (100%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Weighted average (WA) | 54.5 | |||||
For detailed results and domain evaluation, kindly refer the attached QPRF in attached background material section of IUCLID.
Results:
Primary half-life values
Constituent (acronyms) | Boundary composition (% w/w) | Mole fraction Xi = (mi/Mi)/∑ (mi/Mi) | CATALOGIC Kinetic 301F v.15.18 - primary half-life (days) |
CATALOGIC 301F v.15.18 -primary half-life (days) x xi |
Domain evaluation |
di-TMPTTA | 20-70 | 0.51 | 1.00E+00 | 0.51 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA | 0-15 | 0.08 | 1.00E+00 | 0.08 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA | 2-40 | 0.13 | 1.00E+00 | 0.13 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTTA + AA | 0-15 | 0.10 | 1.00E+00 | 0.10 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTA | 0-12 | 0.03 | 1.00E+00 | 0.03 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA + AA | 0-10 | 0.03 | 1.00E+00 | 0.03 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA | 0-10 | 0.02 | 1.00E+00 | 0.02 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPDA | 0-14 | 0.03 | 1.00E+00 | 0.03 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPDA | 0-10 | 0.01 | 1.00E+00 | 0.01 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA + AA | 0-5 | 0.01 | 1.00E+00 | 0.01 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA + AA | 0-5 | 0.02 | 1.00E+00 | 0.02 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPMA | 0-5 | 0.02 | 1.13 | 0.02 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Weighted average (WA) | 1.00 |
Ultimate half-life values
Constituent (acronyms) | Boundary composition (% w/w) | Mole fraction Xi = (mi/Mi)/∑ (mi/Mi) | CATALOGIC Kinetic 301F v.15.18 - ultimate half-life | CATALOGIC Kinetic 301F v.15.18 - ultimate half-life (in days) | CATALOGIC Kinetic 301F v.15.18 - ultimate half-life *xi | Domain evaluation |
di-TMPTTA | 20-70 | 0.51 | 1m 4d | 34 | 17 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA | 0-15 | 0.08 | 1m 7d | 37 | 3 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA | 2-40 | 0.13 | 1m 7d | 37 | 5 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTTA + AA | 0-15 | 0.10 | 30.15 days | 30.15 | 3 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTA | 0-12 | 0.03 | 1m 10d | 40 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPTTA + AA | 0-10 | 0.03 | 1m 5d | 35 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA | 0-10 | 0.02 | more than 10 years | 3650 | 78 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPDA | 0-14 | 0.03 | 1m 11d | 41 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
dimer di-TMPTA + di-TMPDA | 0-10 | 0.01 | 1m 9d | 39 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Trimer AA + AA | 0-5 | 0.01 | more than 10 years | 3650 | 44 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPTA + AA | 0-5 | 0.02 | 1m 0d | 30 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
di-TMPMA | 0-5 | 0.02 | 1m 27d | 57 | 1 | In domain for structure (> 80%), physico-chemical properties (MW, WS and log Kow) and mechanistic. |
Weighted average (WA) | 155.8 | |||||
For detailed results and domain evaluation, kindly refer the attached QPRF in attached background material section of IUCLID.
Description of key information
Based on the results of the modified Sturm test as well as closed bottle test, the test substance is not readily biodegradable. However, extension of the close bottle test up to Day 60, resulted in 46% degradation, indicating an inherent biodegradation potential of the test substance. This is further supported by the primary half-life QSAR predictions for the different constituents and their degradation products, which indicates that the test substance is overall not persistent in the environment, except for two degradation products.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
- Type of water:
- freshwater
Additional information
Experimental data:
A study was conducted to determine the ready biodegradability potential of the test substance in a CO2 evolution (modified Sturm) test, according to OECD Guideline 301B, in compliance with GLP. In addition, the procedures were designed to meet the test methods of the Commission Regulation (EC) No. 440/2008 of 30 May 2008, Publication No. L142, Part C.4-C and the ISO International Standard 9439, 1999 and ISO Standard 10634, 1995. The substance was tested in duplicate at approximately 17.5 mg/L, corresponding to 12 mg total organic carbon (TOC)/L, during 28 d. Based on the TOC content, the theoretical CO2 demand (ThCO2) of the test substance was calculated to be 2.52 mg CO2/mg. The relative biodegradation values revealed 4 and 14% biodegradation of the test substance for the duplicate bottles tested. Thus, the criterion for ready biodegradability was not met. In conclusion, the test substance is considered to be not readily biodegradable in this study (Desmares-Koopmans, 2012).
Another study was conducted to determine the ready and inherent biodegradability of the test substance in a prolonged close bottle test, according to an extended version of OECD Guideline 301D, in compliance with GLP. The test was performed in 0.30 L BOD (biological oxygen demand) bottles with glass stoppers. There were 10 bottles containing only river water, 6 bottles containing river water and sodium acetate, 10 bottles containing river water with test substance and surfactant, and 10 bottles containing river water with surfactant. The concentrations of test substance, surfactant and sodium acetate in the bottles were 4.0, 4.0 and 6.7 mg/L, respectively. No reduction in the endogenous respiration was observed at Day 7. The test substance was therefore considered to be non-inhibitory to the inoculum. The test was valid, as shown by an endogenous respiration of 1.5 mg/L and by the total mineralization of the reference compound, sodium acetate. Sodium acetate was degraded by 83% of its theoretical oxygen demand after 14 d. Oxygen concentrations remained >0.5 mg/L in all bottles during the test period. The test substance was biodegraded by 25% at Day 28 and by 46% at Day 60. Under the conditions of the study, the test substance is not readily biodegradable, but can be considered inherently biodegradable (Ginkel, 2014).
QSAR predictions:
The ready biodegradation and half-life of the test substance was predicted using the CATALOGIC 301C v.12.17. Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation) primary and ultimate half-life values were predicted for the individual constituents followed by the determination of an overall weighted average using the mole fractions. SMILES codes were used as the input parameter. The predicted primary half-life values of the individual constituents ranged from 1 to 6.51 days, leading to a weighted average half-life value of 4.5 days for the test substance. Whereas the predicted ultimate half-life values of the individual constituents ranged from 39 to 113 days, leading to a weighted average half-life value of 54.5 days for the test substance. All the QSAR predictions were within the domain of the QSAR model (LMC, 2018). According to the ECHA Guidance Chapter R.11, June 2017,the primary half-life values for the different constituents indicates that the test substance is not persistent.[OAT1] [SM2]
The ready biodegradation and half-life of the test substance was predicted using the CATALOGIC Kinetic 301F v.15.18. Since the test substance is a UVCB with similar constituents (varying mainly in the number of acrylates TMP backbone as well as adduct formation) half-life values were predicted for the individual constituents followed by the determination of an overall weighted average using the mole fractions. SMILES codes were used as the input parameter. The predicted primary half-life values of the individual constituents ranged from <1 to 1.13 days, leading to a weighted average half-life value of 1 day for the test substance. Whereas the predicted ultimate half-life values of the individual constituents ranged from 30 to 3650 days, leading to a weighted average half-life value of 155.8 days for the test substance. Except the trimers (which exceeded the molecular weight parameter), all other constituents were within the domain criteria defined in the QSAR model. Therefore, the predictions for the trimers are considered to be less accurate or reliable with restrictions (LMC, 2022). According to the ECHA Guidance Chapter R.11, June 2017, the primary half-life values for the different constituents indicates that the test substance is not persistent.
The primary half-life of 12 degradation products of the test substance identified and predicted using CATALOGIC 301C v.12.17 model, ranged from <1 day to 240 days. Except for two degradation products, the predicted half-life values for most of the degradation products were below 40 days.Further, none of the degradation products was assessed to be bioaccumulative or toxic, suggesting that they have no PBT concerns(see Annex 7 for further details).
Therefore, taking into consideration the primary half-life QSAR predictions for the different constituents and their degradation products indicates that, the test substance is overall not persistent in the environment, except for two degradation products.
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