Registration Dossier
Registration Dossier
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EC number: 201-182-6 | CAS number: 79-16-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Data from OECD SIDS (2004)
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Directive 92/69/EEC, Part 7, page: 216 (MITI I)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- N,N-dimethylacetamide
- EC Number:
- 204-826-4
- EC Name:
- N,N-dimethylacetamide
- Cas Number:
- 127-19-5
- Molecular formula:
- C4H9NO
- IUPAC Name:
- N,N-dimethylacetamide
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: activated sludge, domestic and industrial, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- 8.7
- Sampling time:
- 1 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 23.7
- Sampling time:
- 2 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 55.3
- Sampling time:
- 11 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 57.5
- Sampling time:
- 12 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 70
- Sampling time:
- 28 d
- Details on results:
- additional data:
21 d: 63.8 % BOD of ThOD
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable, but failing 10-day window
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