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EC number: 422-380-0 | CAS number: 98349-25-8 PD 149834
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Guideline Study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Ethyl 1-cyclopropyl-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate
- EC Number:
- 422-380-0
- EC Name:
- Ethyl 1-cyclopropyl-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate
- Cas Number:
- 98349-25-8
- Molecular formula:
- C15H13F2NO3
- IUPAC Name:
- ethyl 1-cyclopropyl-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: mixed population of aquatic organisms (activated sludge); laboratory scale receiving sewage from south Wupper area water authority (predominantly domestic sewage)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 2 h
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1
- Sampling time:
- 8 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1
- Sampling time:
- 14 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1
- Sampling time:
- 20 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
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