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EC number: 287-791-8 | CAS number: 85585-89-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1993
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Trisodium [5-acetamido-4-hydroxy-3-[[2-hydroxy-4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonato(5-)]cuprate(3-)
- EC Number:
- 263-856-6
- EC Name:
- Trisodium [5-acetamido-4-hydroxy-3-[[2-hydroxy-4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonato(5-)]cuprate(3-)
- Cas Number:
- 63105-49-7
- Molecular formula:
- C20H14CuN3O15S4.3Na C20H14CuN3Na3O15S4
- IUPAC Name:
- trisodium 15-acetamido-7-[2-(sulfonatooxy)ethanesulfonyl]-10λ³,12λ³-dioxa-2λ⁴,3-diaza-11-cuprapentacyclo[11.8.0.0²,¹¹.0⁴,⁹.0¹⁴,¹⁹]henicosa-1(21),2,4,6,8,13,15,17,19-nonaene-11,11-bis(ylium)-10,12-diide-17,21-disulfonate
- Test material form:
- solid: particulate/powder
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 28 d
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- DOC removal
- Parameter followed for biodegradation estimation:
- other: colour removal
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- < 10
- Sampling time:
- 28 d
- Parameter:
- other: % colour removal
- Value:
- 95
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not inherently biodegradable
- Conclusions:
- The substance was not found to be inherently biodegradable (DOC removal <10% after 28 d).
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