Registration Dossier
Registration Dossier
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EC number: 440-870-2 | CAS number: 1013-88-3
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.2 (Acute Toxicity for Daphnia)
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 440-870-2
- EC Name:
- -
- Cas Number:
- 1013-88-3
- Molecular formula:
- C13 H11 N
- IUPAC Name:
- C,C-Diphenylmethyleneimine
- Details on test material:
- - Name of test material (as cited in study report): Benzophenonimin
- Stability under test conditions: The test substance hydrolyses rapidly. Therefore a semi-static approach with reanalysis of the test compound was used.
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: water flea
- Source: Institut National de Recherche Chimique Appliquee, France, breeded since1978 in the labs of the BASF AG
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
Test conditions
- Details on test conditions:
- - Test temperature : 20 ± 2 0C
- Test vessel : glass tubes with flat bottom (Volume 20 ml)
- Test volume : 10 ml
- animals per ml: : 0,5
- animals per vessel: 5
- animals per concentration: 20
- number of controls/ parallel concentrations: 4
- age of animals: 2 - 24 h
- light: 16h : 8 h - Reference substance (positive control):
- not specified
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 8.5 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
Any other information on results incl. tables
The analytically determined values of the test substance are calculated via the determination of the hydrolysis product benzophenone in the test samples. The concentrations ranged from 84- 106 % and thus, the endpoint ist based on the nominal values.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
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