Registration Dossier
Registration Dossier
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EC number: 200-453-6 | CAS number: 60-09-3
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: Guideline study, non-GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-aminoazobenzene
- EC Number:
- 200-453-6
- EC Name:
- 4-aminoazobenzene
- Cas Number:
- 60-09-3
- Molecular formula:
- C12H11N3
- IUPAC Name:
- 4-[(E)-2-phenyldiazen-1-yl]aniline
- Details on test material:
- - Name of test material (as cited in study report): p-Amino-Azobenzol (4-Aminoazobenzene)
- Analytical purity: > 98%
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 10 mg/L
- Based on:
- DOC
- Initial conc.:
- 14 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- < 10
- Sampling time:
- 28 d
Any other information on results incl. tables
Since the test substance is not sufficiently soluble in water, no DOC degradation was determined.
Applicant's summary and conclusion
- Interpretation of results:
- other: poorly biodegradable
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