Registration Dossier
Registration Dossier
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EC number: 285-203-4 | CAS number: 85049-34-9
Hydrolysis
Administrative data
Link to relevant study record(s)
- Endpoint:
- hydrolysis
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is readily biodegradable
- Endpoint:
- hydrolysis
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Study period:
- June 2014
- 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
- Principles of method if other than guideline:
- Calculation based on HYDROWIN v2.00, Estimation Programs Interface Suite™ for Microsoft® Windows v 4.11. US EPA, United States Environmental Protection Agency, Washington, DC, USA.
- GLP compliance:
- no
- Estimation method (if used):
- - Total Kb for pH > 8: 4.345E-002 L/mol sec
- Temperature for which rate constant was calculated: 25 °C
- Computer programme: HYDROWIN v2.00 - pH:
- 7
- Temp.:
- 25 °C
- DT50:
- 2.632 yr
- pH:
- 8
- Temp.:
- 25 °C
- DT50:
- 96.126 d
- Details on results:
- For detailed description on the model and its applicability, see "Any other information on materials and methods incl. tables".
Referenceopen allclose all
Result refers to the uncharged molecule.
Description of key information
Abiotic degradation is not relevant due to ready biodegradation.
Key value for chemical safety assessment
Additional information
No experimental studies investigating the abiotic hydrolysis of the test substance are available. However, in accordance with Annex VIII, column 2 of Regulation (EC) No 1907/2006, testing is not required since the substance is readily biodegradable.
In addition, a supporting QSAR calculation (HYDROWIN v2.00) was performed with the main component 2-[(Z)-octadec-9-enoyl]oxypropyl (Z)-octadec-9-enoate. It indicates, that hydrolysis is a negligible pathway for the environmental fate of test substance in the environment (DT50 > 1 yr (pH 7); Werth, 2014).
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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