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EC number: 601-161-5 | CAS number: 112110-16-4
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-study, no deviation.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 A (Ready Biodegradability: DOC Die Away Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Dimethyl 5-methylpyridine-2,3-dicarboxylate
- EC Number:
- 601-161-5
- Cas Number:
- 112110-16-4
- Molecular formula:
- C10 H11 N O4
- IUPAC Name:
- Dimethyl 5-methylpyridine-2,3-dicarboxylate
- Details on test material:
- - Name of test material (as cited in study report): "5-Methyl-2,3-pyridinedicarboxylate, dimethyl ester
- Analytical purity: 98.2 %
- Lot/batch No.: 6116H01GA
- Expiration date of the lot/batch: 26 April 2007
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Municipal activated sludge from laboratory wastewater treatment plant fed with municipal sewage and synthetic wastewater.
- Concentration of sludge: 30 mg/l - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- < 10
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
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