Registration Dossier
Registration Dossier
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EC number: 410-340-5 | CAS number: 69045-84-7 DCTFMP
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Report date:
- 2004
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: Commision Directive 88/302/EEC
- Qualifier:
- according to guideline
- Guideline:
- other: Official Journal of the EG L133 Part C (1988)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2,3-dichloro-5-trifluoromethylpyridine
- EC Number:
- 410-340-5
- EC Name:
- 2,3-dichloro-5-trifluoromethylpyridine
- Cas Number:
- 69045-84-7
- Molecular formula:
- C6H2Cl2F3N
- IUPAC Name:
- 2,3-dichloro-5-trifluoromethylpyridine
Constituent 1
Test organisms
- Test organisms (species):
- activated sludge
Study design
- Total exposure duration:
- 3 h
Results and discussion
Effect concentrations
- Duration:
- 3 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 10 000 mg/L
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
Applicant's summary and conclusion
- Conclusions:
- The EC50 is higher than 10000 mg/l
- Executive summary:
The activated sludge was exposed to EA C638206-PyCl (AE C648993) at different concentrations.
The respiration rate of each mixture was determined after aeration periods of 3 hours.
AE C638206-PyCl (AE C648993)showed 5.7% respiration inhibition of activated sludge at a test item concentration of 10000 mg/l.
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