Registration Dossier
Registration Dossier
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EC number: 216-731-5 | CAS number: 1655-07-8
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
- Study period:
- January 13-15, 1998
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
- Report date:
- 1998
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Version / remarks:
- 202.1 - NF EN ISO 6341
- Deviations:
- not specified
- GLP compliance:
- no
Test material
- Reference substance name:
- Ethyl 2-oxocyclohexanecarboxylate
- EC Number:
- 216-731-5
- EC Name:
- Ethyl 2-oxocyclohexanecarboxylate
- Cas Number:
- 1655-07-8
- Molecular formula:
- C9H14O3
- IUPAC Name:
- ethyl 2-oxocyclohexane-1-carboxylate
- Test material form:
- other: Liquid
- Details on test material:
- - Name of test material (as cited in study report): carbethoxy cyclohexanone
- Storage condition of test material: 4°C in the dark
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Third generation, at least third spawn
Study design
- Test type:
- not specified
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 263 mg CaCO3/l
- pH:
- 7,93
- Reference substance (positive control):
- yes
- Remarks:
- Potassium dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 24 h
- Dose descriptor:
- EC50
- Remarks:
- Inhibition
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- not specified
- Basis for effect:
- mobility
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Remarks:
- Inhibition
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- not specified
- Basis for effect:
- mobility
- Results with reference substance (positive control):
- - Results with reference substance valid:
- EC(I)50 24h = 1.13 mg/l
Any other information on results incl. tables
See details in joined study report
Applicant's summary and conclusion
- Conclusions:
- CE(I)50-48h > 100 mg/l
The intermediate is not toxic for Daphnia magna
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