Registration Dossier
Registration Dossier
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EC number: 249-922-7 | CAS number: 29878-91-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP and Guideline study. Testsubstance was the disodium salt.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 17273-45-9
- Cas Number:
- 17273-45-9
- IUPAC Name:
- 17273-45-9
- Reference substance name:
- 1,1-dinaphthyl-8,8´-dicarbonsäure, di-Natriumsalz
- IUPAC Name:
- 1,1-dinaphthyl-8,8´-dicarbonsäure, di-Natriumsalz
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Duration of test (contact time):
- 28 d
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- < 20
- 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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