Registration Dossier
Registration Dossier
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EC number: 207-993-1 | CAS number: 504-53-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Version / remarks:
- no detailed description provided
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Pentatriacontan-18-one
- EC Number:
- 207-993-1
- EC Name:
- Pentatriacontan-18-one
- Cas Number:
- 504-53-0
- Molecular formula:
- C35H70O
- IUPAC Name:
- pentatriacontan-18-one
- Test material form:
- solid
Constituent 1
Study design
- Oxygen conditions:
- not specified
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Concentration of sludge:30mg/L
- Duration of test (contact time):
- 4 wk
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- other: BOD
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- other: BOD
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Remarks:
- BOD
- Value:
- 39
- Sampling time:
- 4 wk
- Key result
- Parameter:
- % degradation (test mat. analysis)
- Remarks:
- GC
- Value:
- 46
- Sampling time:
- 4 wk
BOD5 / COD results
BOD5 / COD
- Parameter:
- BOD5
- Value:
- 39 other: %
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Stearone is not readily biodegradable in a sceening test
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