Registration Dossier
Registration Dossier
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EC number: 208-008-8 | CAS number: 505-32-8
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:
- other: Non-GLP guideline study
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
- Reference Type:
- other: reprint
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- EC Number:
- 208-008-8
- EC Name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- Cas Number:
- 505-32-8
- Molecular formula:
- C20H40O
- IUPAC Name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- Details on test material:
- - Name of test material (as cited in study report): 3,7,11,15-Tetramethyl-1-hexadecen-3-ol (Isophytol)
Purity: no data
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- Concentration of activated sludge: 30 mg/l dry matter
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 84 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- aniline
- Remarks:
- 100 mg/l
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 70 - ca. 80
- Sampling time:
- 28 d
- Details on results:
- Kinetic of test substance (in %):
= 17 after 7 day(s)
= 40 after 10 day(s)
= 57 after 15 day(s)
= 67 after 20 day(s)
Any other information on results incl. tables
Lag-Phase: 6 day; Plateau phase: 23 day
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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