Registration Dossier
Registration Dossier
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EC number: 278-575-4 | CAS number: 76918-62-2
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: According to OECD Guideline No. 301 F
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Sodium N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamidate
- EC Number:
- 278-575-4
- EC Name:
- Sodium N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamidate
- Cas Number:
- 76918-62-2
- Molecular formula:
- C18H13N3O3.Na
Constituent 1
Study design
- Inoculum or test system:
- sewage, domestic, non-adapted
- Details on inoculum:
- - Origin: Municipal sewage treatment plant of Sindlingen (Frankfurt)
- non-adapted sewage, receives predominatly municipal sewage and hardly industrial chemical waste - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- >= 207 - <= 218 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 7 d
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 14 d
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 21 d
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Not readily biodegradable
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