Registration Dossier
Registration Dossier
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EC number: 204-516-9 | CAS number: 122-03-2
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- August 2000
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 4-isopropylbenzaldehyde
- EC Number:
- 204-516-9
- EC Name:
- 4-isopropylbenzaldehyde
- Cas Number:
- 122-03-2
- Molecular formula:
- C10H12O
- IUPAC Name:
- 4-(propan-2-yl)benzaldehyde
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- 4-isopropylbenzaldehyde
Batch: 9000380058
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Fresh activated sludge from a biological waste water treatment plant treating predominantly domestic sewage was used.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 86
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Executive summary:
Cuminic Aldehyde undergoes 86% biodegradation after 28 days (87% after 31 days) in the test conditions. Biodegradation starts on day 3 and reaches 80% at the end of the 10 -day window (days 3 to 13).
Therefore, Cuminic Aldehyde should be regarded as readily biodegradable according to this test.
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