Registration Dossier
Registration Dossier
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EC number: 406-760-3 | CAS number: 42221-52-3 2,3,4,5-TETRACHLORBENZOYLCHLORID
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- 2006
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: Com.Dir.88/302/EEC; Official Journal of the EG L133 Part C (1988).
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2,3,4,5-tetrachlorobenzoylchloride
- EC Number:
- 406-760-3
- EC Name:
- 2,3,4,5-tetrachlorobenzoylchloride
- Cas Number:
- 42221-52-3
- Molecular formula:
- C7HCl5O
- IUPAC Name:
- 2,3,4,5-tetrachlorobenzoyl chloride
Constituent 1
Test organisms
- Test organisms (species):
- activated sludge
Study design
- Total exposure duration:
- 3 h
Results and discussion
Effect concentrations
- Dose descriptor:
- EC50
- Effect conc.:
- > 10 000 mg/L
Any other information on results incl. tables
All validity criteria of the test method were met:
- respiratory rates of the 2 controls differ less than 15 %
- respiratory rate of the controls < 60 mg 02/1 • h
- EC50of the reference substance 3.5-dichlorophenol is in the range 5 — 30 mg/1
Applicant's summary and conclusion
- Conclusions:
- Testmaterial showed 5.9 % respiration inhibition of activated sludge at a test item concentration of 10000 mg/l.
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