Registration Dossier
Registration Dossier
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EC number: 610-142-0 | CAS number: 437-81-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- 2,4-difluorobenzaldehyde
- EC Number:
- 216-287-2
- EC Name:
- 2,4-difluorobenzaldehyde
- Cas Number:
- 1550-35-2
- Molecular formula:
- C7H4F2O
- IUPAC Name:
- 2,4-difluorobenzaldehyde
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Non adapted sludge from municipal STP of Frankfurt am Main Sindlingen
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 226 mg/L
- Based on:
- COD
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
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