Registration Dossier
Registration Dossier
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EC number: 264-497-8 | CAS number: 63817-45-8
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21 Jul - 18 Aug 1994
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 994
- Report date:
- 1994
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1-ethyl-2-[1,2,3,4-tetrahydro-1-(2-hydroxyethyl)-2,2,4-trimethyl-6-quinolyl]benz[cd]indolium chloride
- EC Number:
- 264-497-8
- EC Name:
- 1-ethyl-2-[1,2,3,4-tetrahydro-1-(2-hydroxyethyl)-2,2,4-trimethyl-6-quinolyl]benz[cd]indolium chloride
- Cas Number:
- 63817-45-8
- Molecular formula:
- C27H31N2O.Cl
- IUPAC Name:
- 1-ethyl-2-[1-(2-hydroxyethyl)-2,2,4-trimethyl-1,2,3,4-tetrahydroquinolin-6-yl]benzo[cd]indolium chloride
- Test material form:
- liquid
- Details on test material:
- Basic Blue 147 Cl
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge: Wupperverband (Germany), sampling date 15 Jul 1994
- Pretreatment: none
- Concentration of sludge: 5 mL/L - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 9.6 mg/L
- Based on:
- test mat.
- Initial conc.:
- 847 other: mg O2/g
- Based on:
- COD
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- Blank control performed in parallel
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 8
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The substance showed a maximum biodegradation rate of 8% (based on O2 consumption). The substance is not considered to be readily biodegradable.
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