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EC number: 680-798-0 | CAS number: 886577-76-0
- 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
Hydrolysis
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 30 Sep 2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 111 (Hydrolysis as a Function of pH)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH)
- GLP compliance:
- no
- Remarks:
- Preliminary test
Test material
- Reference substance name:
- 2-isocyanato-2-methyl-3-(prop-2-enoyloxy)propyl prop-2-enoate
- Cas Number:
- 886577-76-0
- Molecular formula:
- C11H13NO5
- IUPAC Name:
- 2-isocyanato-2-methyl-3-(prop-2-enoyloxy)propyl prop-2-enoate
Constituent 1
- Radiolabelling:
- no
Study design
- Analytical monitoring:
- yes
- Details on sampling:
- - Sampling method: Aliquots (100 μL) of a stock solution of the test item in acetonitrile (10 g/l) were added to vials containing buffer solution (10 mL), which had been purged with nitrogen and pre-equilibrated at test temperature (50 °C) in a water bath. This produced test solutions of nominal concentration 100 mg/L. One pair of samples was processed for analysis immediately, whilst another pair was returned to the water bath for 10 minutes prior to processing. On both occasions, the entire volume of each sample was extracted with chloroform (10 mL) and the extract analysed directly by gas chromatography (GC).
- Buffers:
- pH 4.0 : Potassium dihydrogen orthophosphate (3.00 g) and disodium hydrogen orthophosphate dodecahydrate (6.40 g) were dissolved in purified water (950 ml) and the pH was adjusted to 4.0 ± 0.05 with orthophosphoric acid. The volume was then adjusted to 1000 ml with purified water.pH 7.0 : Potassium dihydrogen orthophosphate (6.80 g) was dissolved in purified water (950 ml), 1M sodium hydroxide (30 ml) was added and the pH was adjusted to 7.0 ± 0.05 with 1M hydrochloric acid. The volume was then adjusted to 1000 ml with purified water.pH 9.0 : Disodium tetraborate decahydrate (16.6 g) and potassium dihydrogen orthophosphate (1.80 g) were dissolved in purified water (950 ml) and the pH was adjusted to 9.0 ± 0.05 with 1M hydrochloric acid.. The volume was then adjusted to 1000 ml with purified water.
Duration of testopen allclose all
- Duration:
- 10 min
- pH:
- 4
- Temp.:
- 50 °C
- Initial conc. measured:
- 88.7 mg/L
- Duration:
- 10 min
- pH:
- 7
- Temp.:
- 50 °C
- Initial conc. measured:
- 92.1 mg/L
- Duration:
- 10 min
- pH:
- 9
- Temp.:
- 50 °C
- Initial conc. measured:
- 82.4 mg/L
- Number of replicates:
- 2 replicates
- Positive controls:
- no
- Negative controls:
- no
Results and discussion
- Preliminary study:
- Preliminary investigationThe preliminary study showed that at pH 4, 7 and 9 and 50 ± 0.5 °C, greater than 50% hydrolysis had occurred after 10 minutes, indicating a half-life of significantly less than 1 day under environmental conditions (25 °C).Degradation productDegrdation product was detected by GC Analysis after the extraction treatment of the test solution. The chemical structure of this product is not determined. pH of test solutionsThe pH values showed that there was no significant change in pH of the buffer solutions after addition of the test substance, indicating that the test systems were close to nominal pH.
- Transformation products:
- not measured
- Remarks:
- expert statement (Javier CUESTA-PÉREZ, 2017)
Identity of transformation products
- No.:
- #1
Reference
- Reference substance name:
- Unnamed
- IUPAC name:
- Carbonylbis(azanediyl-2-methylpropane-2,1,3-triyl) tetraprop-2-enoate
- CAS number:
- n.a
- Identifier:
- common name
- Identity:
- N,N’-Di(1,1-bis(acryloyloxymethyl)ethyl)urea
- Molecular formula:
- C21H28N2O9
- Molecular weight:
- 452.455
- SMILES notation:
- O=C(C=C)OCC(C)(COC(=O)C=C)NC(=O)NC(C)(COC(=O)C=C)COC(=O)C=C
- InChl:
- InChI=1S/C21H28N2O9/c1-7-15(24)29-11-20(5,12-30-16(25)8-2)22-19(28)23-21(6,13-31-17(26)9-3)14-32-18(27)10-4/h7-10H,1-4,11-14H2,5-6H3,(H2,22,23,28)
Dissipation DT50 of parent compoundopen allclose all
- pH:
- 4
- Temp.:
- 25 °C
- DT50:
- < 1 d
- Type:
- not specified
- pH:
- 7
- Temp.:
- 25 °C
- DT50:
- < 1 d
- Type:
- not specified
- pH:
- 9
- Temp.:
- 25 °C
- DT50:
- < 1 d
- Type:
- not specified
Any other information on results incl. tables
CONCLUSION
The test item was determined to be hydrolytically unstable under acidic, neutral and basic conditions.
Table 1: Preliminary investigation results for hydrolysis of the test item
pH | Ct (mg/l) | |||
| t0min | t10min | ||
| Measured | Mean | Measured | Mean |
4 | 85.3, 92.0 | 88.7 | 17.9, 18.1 | 18.0 |
7 | 94.7, 89.5 | 92.1 | 5.1, 6.2 | 5.7 |
9 | 77.5, 87.2 | 82.4 | 2.1, 2.8 | 2.4 |
Applicant's summary and conclusion
- Conclusions:
- The test item was determined to be hydrolytically unstable under acidic, neutral and basic conditions. The most probable outcome of the hydrolysis of the test item is the stable urea derivate, Carbonylbis(azanediyl-2-methylpropane-2,1,3-triyl) tetraprop-2-enoate (CUESTA-PÉREZ, J., 2017).
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