Registration Dossier
Registration Dossier
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EC number: 288-492-5 | CAS number: 85736-79-4
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
- Study period:
- 30.4.1993
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Fain, Batch 09.12.1991
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- mixture of sewage, soil and natural water
- Duration of test (contact time):
- ca. 42 d
- Initial conc.:
- ca. 40 mg/L
- Based on:
- DOC
- Parameter followed for biodegradation estimation:
- DOC removal
- Reference substance:
- other: Na-Benzoate
- Preliminary study:
- Biodegradability Fain test study
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 60
- Sampling time:
- 28 d
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 82
- Sampling time:
- 42 d
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Details on results:
- Biodegradable according to test results
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- Fain was measured to be biodagradable in a 28 day window. It was 82% biodagraded in a 42 day window.
- Executive summary:
Readily biodagradable, but failing 10 day window. Biodegradable.
Reference
Description of key information
Readily biodagradable, but failing 10 -day window. Biodegradeble.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
- Type of water:
- freshwater
Additional information
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