Registration Dossier
Registration Dossier
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EC number: 219-291-2 | CAS number: 2403-88-5
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:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-Guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- yes
- Specific details on test material used for the study:
- - Source: Tokyo Kasei Kogyo co., Ltd.
- Purity: 99.2 % - Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: Non adapted standardized activated sludge, prepared as specified in the OECD 301C
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 28 d
- Parameter:
- % degradation (TOC removal)
- Value:
- 1
- Sampling time:
- 28 d
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 2
- Sampling time:
- 28 d
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- This chemical is not readily biodegradable.
Reference
Description of key information
In the key study under test conditions no biodegradation was observed after 28 days. The results of the supporting study are in line with the results from the key study.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
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