Registration Dossier
Registration Dossier
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EC number: 406-040-9 | CAS number: 125643-61-0
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Not specified.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted to GLP (taken from SNIF file). Registrant referring to studies >12 years old at the permission of ECHA. Extremely limited data is presented.
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 406-040-9
- EC Name:
- -
- Cas Number:
- 125643-61-0
- Molecular formula:
- C17 H25 O3 R, Where R = (C7 H15) or (C8 H17) or (C9 H19)
- IUPAC Name:
- C7-9-(branched)-alkyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate
- Details on test material:
- No data
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
No data
Sampling and analysis
- Analytical monitoring:
- not specified
- Details on sampling:
- No data
Test solutions
- Vehicle:
- not specified
- Details on test solutions:
- No data
Test organisms
- Test organisms (species):
- other: No data
- Details on inoculum:
- No data
Study design
- Test type:
- other: aerobic
- Water media type:
- not specified
- Total exposure duration:
- 3 h
- Post exposure observation period:
- No data
Test conditions
- Hardness:
- No data
- Test temperature:
- No data
- pH:
- No data
- Dissolved oxygen:
- No data
- Salinity:
- Not applicable.
- Nominal and measured concentrations:
- No data
- Details on test conditions:
- No data
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 3 h
- Dose descriptor:
- IC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- not specified
- Duration:
- 3 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- not specified
- Details on results:
- No data
- Results with reference substance (positive control):
- No data
- Reported statistics and error estimates:
- No data
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- IC50 > 100 mg/l
NOEC 100 mg/l - Executive summary:
The data is extremely limited.
IC50 > 100 mg/l, NOEC 100 mg/l.
No classification required.
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