Registration Dossier
Registration Dossier
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EC number: 810-303-7 | CAS number: 459-89-2
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:
- January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
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:
- (3E,7E)-4,8,12-trimethyltrideca-3,7,11-trien-1-ol
- EC Number:
- 810-303-7
- Cas Number:
- 459-89-2
- Molecular formula:
- C16H28O
- IUPAC Name:
- (3E,7E)-4,8,12-trimethyltrideca-3,7,11-trien-1-ol
- Reference substance name:
- (3Z,7E)-4,8,12-trimethyltrideca-3,7,11-trien-1-ol
- Cas Number:
- 138152-06-4
- Molecular formula:
- C16H28O
- IUPAC Name:
- (3Z,7E)-4,8,12-trimethyltrideca-3,7,11-trien-1-ol
- Test material form:
- liquid
Constituent 1
impurity 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 76
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Executive summary:
The Ready Biodegradability of Homofarnesol (3E, 7E) was determined by the Manometric Respirometry Test.
Homofarnesol (3E, 7E) undergoes 76% biodegradation after 28 days in the test conditions. The 10 -day window criterion is also fulfilld (27% biodegradation on day 3 and 67% on day 13).
At the test concentration, Homofarnesol (3E, 7E) did inhibit the intrinsic respiration of the inoculum by more than 20% on the first day of the test. Toxicity towards the inoculum cannot therefore be excluded.
Homofarnesol (3E, 7E) should be regarded as readily biodegradable according to this test.
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