Registration Dossier
Registration Dossier
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EC number: 456-160-0 | CAS number: 73942-87-7
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP. Guideline study
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- -
- EC Number:
- 456-160-0
- EC Name:
- -
- Cas Number:
- 73942-87-7
- Molecular formula:
- C12H13NO3
- IUPAC Name:
- 7,8-dimethoxy-2,3-dihydro-1H-3-benzazepin-2-one
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: The inocolum consisted of sewage sludge sampled from the aeration tank of sewage treatment plant and then aerated for 7 days.
- Duration of test (contact time):
- >= 28 d
Results and discussion
- Details on results:
- 4 % degradation after 1 d
6 % degradation after 4 d
3 % degradation after 6 d
1 % degradation after 8 d
0 % degradation after 11 d
1 % degradation after 14 d
2 % degradation after 18 d
3 % degradation after 22 d
1 % degradation after 25 d
Any other information on results incl. tables
14% degradation after 1 d
29% degradation after 4 d
44% degradation after 6 d
50% degradation after 8 d
53% degradation after 11 d
61% degradation after 14 d
61% degradation after 18 d
64% degradation after 22 d
65% degradation after 25 d
89% degradation after 28 d
Applicant's summary and conclusion
- Interpretation of results:
- other: Not readily biodegradable in 28-day
- Conclusions:
- Under our experimental conditions the test item Veralactame was therefore not readily biodegradable in the 28 day modified sturm test.
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