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Registration Dossier
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EC number: 618-706-8 | CAS number: 91161-71-6
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 7.10.1991 - 19.11.1991
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- yes
- Remarks:
- Due to the poor solubility of the test substance in water, an emulsifier was used to achieve a better distribution in the medium.
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- (2E)-N,6,6-trialkyl-N-(1-naphthylmethyl)hept-2-en-4-yn-1-amine salt
- IUPAC Name:
- (2E)-N,6,6-trialkyl-N-(1-naphthylmethyl)hept-2-en-4-yn-1-amine salt
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 10 mg/L
- Based on:
- test mat.
- Initial conc.:
- 20.2 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 4
- Sampling time:
- 28 d
- Remarks on result:
- other: for 10 mg test substance/L
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 2
- Sampling time:
- 28 d
- Remarks on result:
- other: for 20.2 mg test substance/L
- Details on results:
- Degradation kinetic:
Day 3: 0%
Day 10: 68%
Day 20: 80%
Day 28: 86%
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- According the classification criteria described in REGULATION (EC) No 1272/2008 (CLP), the product is not readily biodegradable..
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