Registration Dossier
Registration Dossier
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EC number: 406-040-9 | CAS number: 125643-61-0
Hydrolysis
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Not specified.
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study taken from SNIF file. Registrant referring to studies >12 years old at the permission of ECHA. No justification for the conductance of this test is presented. Extremely limited data set is presented.
Data source
Reference
- Reference Type:
- other: Not stated
- Title:
- Unnamed
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Guideline:
- other: Guideline not specified.
- Deviations:
- not specified
- Principles of method if other than guideline:
- Study taken from SNIF file. Registrant referring to studies >12 years old at the permission of ECHA. No justification for the conductance of this test is presented
- GLP compliance:
- not specified
Test material
- Reference substance name:
- -
- EC Number:
- 406-040-9
- EC Name:
- -
- Cas Number:
- 125643-61-0
- Molecular formula:
- C17 H25 O3 R, Where R = (C7 H15) or (C8 H17) or (C9 H19)
- IUPAC Name:
- Reaction mass of C7-9-alkyl 3-(3,5-di-trans-butyl-4-hydroxyphenyl)propionate
- Details on test material:
- No data
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
No data - Radiolabelling:
- not specified
Study design
- Analytical monitoring:
- not specified
- Details on sampling:
- No data
- Buffers:
- No data
- Estimation method (if used):
- No data
- Details on test conditions:
- No data
- Number of replicates:
- No data
- Positive controls:
- not specified
- Negative controls:
- not specified
- Statistical methods:
- No data
Results and discussion
Dissipation DT50 of parent compoundopen allclose all
- pH:
- 4
- Temp.:
- 25 °C
- DT50:
- 259 h
- pH:
- 7
- Temp.:
- 25 °C
- DT50:
- 4 390 h
- pH:
- 9
- Temp.:
- 25 °C
- DT50:
- 339 h
- Details on results:
- No data
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- At 25 deg C, the half life at various pH’s is as follows:
pH4: 10.7 d
pH7: 182.9 d
pH9: 14.1 d
This indicates that the substance is relatively stable to hydrolytic effects but is prone to hydrolysis at acid and alkali pH’s. The substance is relatively stable at environmentally relevant pH’s; however some removal due to hydrolysis can be predicted. - Executive summary:
At 25 deg C, the half life at various pH’s is as follows:
pH4: 10.7 d
pH7: 182.9 d
pH9: 14.1 d
This indicates that the substance is relatively stable to hydrolytic effects but is prone to hydrolysis at acid and alkali pH’s. The substance is relatively stable at environmentally relevant pH’s; however some removal due to hydrolysis can be predicted.
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