Registration Dossier
Registration Dossier
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EC number: 266-867-4 | CAS number: 67674-28-6
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening test, other
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1987
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 987
- Report date:
- 1987
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- - Principle of test: Biochemical oxygen demand determined after 5 d at 20°C inoculation; COD via titration
- Parameters analysed / observed: oxygen content at 0 h and after 5 d inoculation - GLP compliance:
- no
Test material
- Reference substance name:
- Sodium m-[[4-[[p-[bis(2-hydroxyethyl)amino]phenyl]azo]-1-naphthyl]azo]benzenesulphonate
- EC Number:
- 266-867-4
- EC Name:
- Sodium m-[[4-[[p-[bis(2-hydroxyethyl)amino]phenyl]azo]-1-naphthyl]azo]benzenesulphonate
- Cas Number:
- 67674-28-6
- Molecular formula:
- C26H25N5O5S.Na
- IUPAC Name:
- sodium m-[[4-[[p-[bis(2-hydroxyethyl)amino]phenyl]azo]-1-naphthyl]azo]benzenesulphonate
- Test material form:
- solid
- Details on test material:
- Acid Red 299
Erionyl Rubin 5BLF 200%
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Duration of test (contact time):
- 5 d
Results and discussion
% Degradation
- Parameter:
- other: BOD5
- Remarks on result:
- other: BOD5 measurement
BOD5 / COD results
BOD5 / CODopen allclose all
- Key result
- Parameter:
- BOD5
- Value:
- 42 mg O2/g test mat.
- Parameter:
- COD
- Value:
- 1 494 mg O2/g test mat.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The ratio BOD5 / COD is 0.03 indicating no potential for ready biodegradation.
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