Registration Dossier
Registration Dossier
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EC number: 216-731-5 | CAS number: 1655-07-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- January 13-16, 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 201 (Alga, Growth Inhibition Test)
- Version / remarks:
- NFT 90.304
- 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:
- not specified
Test organisms
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
- Details on test organisms:
- TEST ORGANISM
- Age of inoculum (at test initiation): 72 h
- Concentration: 4.7 10e6 c/ml
Study design
- Test type:
- not specified
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 72 h
Test conditions
- pH:
- 8.1
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrations
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- not specified
- Basis for effect:
- growth rate
Any other information on results incl. tables
See details in joined study report
Applicant's summary and conclusion
- Conclusions:
- CEr50 - 72h > 100 mg/l
The intermediate is not toxic for Algae
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