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 aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EWG, C.3
- 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 solutions
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersal: Ultrasound bath, magnetic stirrers, pleated filter
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Study design
- Limit test:
- yes
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- other: EbC 50
- Effect conc.:
- > 20.5 mg/L
- Remarks on result:
- other: 0-48h
- Duration:
- 48 h
- Dose descriptor:
- other: ErC 50
- Effect conc.:
- > 20.5 mg/L
- Remarks on result:
- other: 0-48h
Any other information on results incl. tables
Recovery rates correspond to 20.5% of nominal values at 0 hours and
to 17.1% of nominal values at the end of the test, respectively.
Based on initial concentratic ns the recovery rate was 83.1% at the end of the test.
Applicant's summary and conclusion
- Conclusions:
- Up to the water solubility of the test item (and its hydrolysis products) under exposure conditions no toxic effects were determined.
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