Registration Dossier
Registration Dossier
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EC number: 221-639-3 | CAS number: 3173-53-3
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:
- 1976
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 976
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- Cyclohexylamine
- EC Number:
- 203-629-0
- EC Name:
- Cyclohexylamine
- Cas Number:
- 108-91-8
- Molecular formula:
- C6H13N
- IUPAC Name:
- cyclohexanamine
- Details on test material:
- cyclohexylamine, purity not specified
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic (adaptation not specified)
- Details on inoculum:
- Type: mixed population of aquatic microorgamisms (predominantly domestic sewage)
- Duration of test (contact time):
- 20 d
Initial test substance concentration
- Initial conc.:
- 2.4 mg/L
- Based on:
- test mat.
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 92
- Sampling time:
- 20 d
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
- Executive summary:
A test according to the EU Method C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test) was conducted to investigate the ready biodegradability of cyclohexylamine. Within 20 d, 92 % of the test item were degraded (Bayer AG, 1976).
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