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EC number: 600-896-9 | CAS number: 109089-77-2
- 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
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 20, 2019 - May 28, 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Version / remarks:
- 2004
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Analytical monitoring:
- yes
- Details on sampling:
- - Concentrations: 0 (control) and 100 mg/L (limit test)
- Sampling method: The test item concentration in the control and the solutions was checked by HPLC/UV at start (t=0h) and at the end of the test (t=48h). All the solutions were analysed taken directly from the starting solutions without daphnids.
- Sample storage conditions before analysis: All the solutions were kept in the refrigerator. - Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: The prepared sample was stirred 24 hours at 20 ± 2°C and at darkness. After this step, the sample was filtered with a cellulose acetate filter (porosity size 0.45 µm).
- Controls: 6 biotic replicates - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: water flea
- Strain/clone: Daphnia magna straus, clone no.5
- Source: Laboratoire de Chimie-Écotoxicologie, FCBA (Institut Technologique Forêt Cellulose Bois, Construction Ameublement), Pôle des Laboratoires Bois, Allée de Boutaut – BP 227, 33028 BORDEAUX Cedex - FRANCE
- Age (mean and range, SD): Daphnids used in this experimentation were previously filtered in order to obtain animals from a size between 560 μm and 800 μm (corresponding to daphnids less than 24 hours old).
- Feeding during test: no
ACCLIMATION
- Acclimation conditions (same as test or not): The daphnids breeding was carried out in closed bottles placed in a climatic chamber free from any toxic vapour and in medium M4. - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
- Hardness:
- 250 mg/L as CaCO3
- Test temperature:
- 18 – 22°C, but constant within ±1°C
- pH:
- 6 – 9
- Dissolved oxygen:
- 8.5 – 8.7
- Nominal and measured concentrations:
- - Nominal concentrations: 0 (control), 100 mg/L.
- Measured concentrations: 0 (control), 95.5 (0h) - 94.7 (48h) mg/L. - Details on test conditions:
- TEST SYSTEM
- Test vessel: glass test tubes
- Type (delete if not applicable): open
- Material, size, headspace, fill volume: glass, fill volume 10mL
- Aeration: yes
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 6
- No. of vessels per control (replicates): 6
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: ultrapure water (as described in the guideline).
OTHER TEST CONDITIONS
- Adjustment of pH: no
- Photoperiod: continuous darkness
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): immobilisation (24h, 48h)
RANGE-FINDING STUDY
- Test concentrations: 1st run: 3, 10, 50 mg/L; 2nd run: 50, 100, 328, 1050 mg/L (nominal values; 10 animals/concentration)
- Results used to determine the conditions for the definitive study: 0% immobilisation was observed up to 100 mg/L; 40% immobilisation was observed at 328 mg/L and 10% at 1050 mg/L test item. Therefore, it was concluded that a limit test could be performed. - Reference substance (positive control):
- yes
- Remarks:
- potassium dichromate (May 16, 2019)
- Key result
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Duration:
- 24 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Details on results:
- - Behavioural abnormalities: no
- Results with reference substance (positive control):
- - Results with reference substance valid?
yes (result within the accepted interval of 0.6–2.1 mg/L as per ISO 6341, December 2012 and historical data)
- ECx: 24h-EC50 = 1.50 mg/L (1.36 – 1.67) - Validity criteria fulfilled:
- yes
- Remarks:
- In the control, no daphnids were immobilised (< 10%); the dissolved oxigen concentration at the end of the test was ca. 8.5 mg/L (> 3 mg/L) in the control and test vessels.
- Conclusions:
- The 48h-EC50 of the test item in Daphnia magna based on immobilisation was found to be > 100 mg/L.
- Executive summary:
An acute immobilisation test on Daphnia magna was performed on the test item, according to OECD 202, under GLP conditions. Based on the results obtained in a preliminary test where immobilisation of 20 - 40% was observed at 328 - 1050 mg/L test item, a 48-h exposure limit test at 100 mg/L test item concentration was performed. Blank controls were run in parallel, and a positive control is regularly performed with potassium dichromate. Six replicates were tested for the control and the test item. Test concentrations were analytically determined by means of a validated HPLC-UV method at the beginning and at the end of the test. Since the test item was stable in the test medium (deviation from the measured initial concentration was within ± 20 %), the test results expressed relative to nominal test item concentrations. All validity criteria were met. The 48h-EC50 and the 24h-EC50 of the test item in daphnids were determined to be > 100 mg/L.
- Endpoint:
- short-term toxicity to aquatic invertebrates
- 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:
- 1. SOFTWARE : EPI-SUITE EPA (USA)
2. MODEL: ECOSAR v1.11
3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
- SMILES: COC1=C(C=C(C)C=C1)C(CC(O)=O)C1=CC=CC=C1
- Experimental partition coefficient value: Log Kow: 2.440
- Experimental water solubility value: Wat Sol: 14.2 mg/L
4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL: The QMRF is available in "Attached justification".
5. APPLICABILITY DOMAIN : The QPRF is available in 'Attached justification'.
6. ADEQUACY OF THE RESULT : The QPRF is available in 'Attached justification'. - Reason / purpose for cross-reference:
- other: supporting information
- Remarks:
- experimental logKow value.
- Guideline:
- other: REACH Guidance on QSARs R.6
- GLP compliance:
- no
- Specific details on test material used for the study:
- SMILES: COC1=C(C=C(C)C=C1)C(CC(O)=O)C1=CC=CC=C1
- Key result
- Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- 528.7 mg/L
- Nominal / measured:
- estimated
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: calculated value.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The calculated 48h-LC50 of the test item in daphnia is 528.7 mg/L.
- Executive summary:
ECOSAR v1.11 calculation of the 48h-LC50 in daphnia was used. According to this method, the 96h-LC50 = 528.7 mg/L of test item in daphnia.
Referenceopen allclose all
Table 2. Summary of results.
Observation time |
24h |
48h |
EC50 (mg/l) |
> 100 mg/L |
> 100 mg/L |
Table 3. Daphnids immobilisation results.
Nominal test item concentration |
Number of daphnids exposed at the start |
Immobilised daphnids (%) |
|
at 24h |
at 48h |
||
Control |
30 |
0 (0%) |
0 (0%) |
100 |
30 |
0 (0%) |
0 (0%) |
Table 4. Measured test item concentration during the main test (variation < 20% of the nominal value).
|
Concentration (mg test item / L) |
Deviation (%) |
|
Nominal test item concentration (mg/L) |
Initial time (T0h) |
Final time (T48h) |
|
Control |
< 0.5 |
< 0.5 |
NA |
100 |
95.5 |
94.7 |
-0.8 |
Table 5. Validity criteria.
Validity criterion |
Values for OECD 202 |
Validity criteria for the test |
Immobilised daphnids in control |
< 10% |
Ok (0%) |
Dissolved Oxygen concentration |
> 3 mg/L |
Ok (8.5 mg/L) |
Table 6. pH values
Nominal test item concentration (mg/L) |
pH |
|
T0 |
T48 h |
|
Control |
8.5 |
8.3 |
100 |
7.4 |
7.5 |
Table 7. Dissolved oxygen.
Nominal test item concentration (mg/L) |
O2 (mg/L) |
|
T0 (Air: 9.4 mg/L) |
T48 h (Air: 9.4 mg/L) |
|
Control |
8.7 |
8.6 |
100 |
8.7 |
8.5 |
ECOSAR v1.11 predicted that the substance has a 48h-LC50 = 528.7 mg/L in daphnia.
According to the prediction, if the effect level exceeds the water solubility by 10X, typically no effects at saturation (NES) are predicted. The experimental water solubility value of the test item was found to be 14.2 mg/L (20ºC, pH 5).
Description of key information
Key study. Method according to OECD 202, GLP study. The 48h-EC50 and the 24h-EC50 of the test item in daphnids were determined to be > 100 mg/L.
Supporting study. ECOSAR v1.11, accepted calculation method. The substance has a predicted 48h-LC50 = 528.7 mg/L in daphnia.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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