Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 421-720-5 | CAS number: 18085-02-4 3,4-DIACETOXY-1-BUTENE
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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Data migrated from NONS with permission to refer granted by ECHA.
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EEC, C4-C
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- not specified
- Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 81
- Sampling time:
- 28 d
- Details on results:
- 15% degradation after 3 days
37% degradation after 8 days
47% degradation after 13 days
69% degradation after 20 days
80% degradation after 27 days
81% degradation after 28 days - Results with reference substance:
- 29% degradation after 3 days
57% degradation after 8 days
64% degradation after 13 days
74% degradation after 20 days
76% degradation after 27 days
77% degradation after 28 days - Validity criteria fulfilled:
- not specified
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- Based on information provided by ECHA, the test substance is expected to be readily biodegradable but failing to meet the 10-day window criteria.
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- BOD/COD test
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Data migrated from NONS with permission to refer granted by ECHA.
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EEC, C5
- Qualifier:
- according to guideline
- Guideline:
- other: 96/69/EEC, C6
- GLP compliance:
- yes
- Parameter:
- BOD5
- Value:
- 0.51 g O2/g test mat.
- Parameter:
- COD
- Value:
- 1.56 g O2/g test mat.
- Parameter:
- BOD5*100/COD
- Value:
- 33 other: Not specified
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- other: BOD/COD assessment rather than direct biodegradation.
- Conclusions:
- Information on BOD/COD has been provided by ECHA.
Referenceopen allclose all
Description of key information
Based on information provided by ECHA, the test substance is expected to be readily biodegradable but failing to meet the 10-day window criteria. Based on the high level of CO2 evolution observed in the key study, it is unlikely that the substance will persist in aquatic systems.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
