Registration Dossier
Registration Dossier
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EC number: 425-090-2 | CAS number: 86087-23-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1997
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Annex V C3
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 425-090-2
- EC Name:
- -
- Cas Number:
- 86087-23-2
- Molecular formula:
- C4 H8 O2
- IUPAC Name:
- (3S)-oxolan-3-ol
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersal: None
Test organisms
- Test organisms (species):
- Scenedesmus capricornutum
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 120 mg/L
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 120 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 120 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 120 mg/L
- Basis for effect:
- biomass
- Details on results:
- %Concentration loss over test: ... 23
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- 1272W94was found to have a 72h EC50 of >120mg/L when tested in Selenastrum capricornutum using method C3 "Algal inhibition test" .
- Executive summary:
The toxicity of 1272W94 was evaluated in freshwater alga Selenastrum capricornutum using method C3 "Algal inhibition test" .A nominal concentration of 120mg/L was used in the study together with culture medium. The mean measured concentrations of 1272W94 were 108 and 83% of the nominal value at the start and end of the test respectively. under the conditions of the study the 72h EC50 was >120mg/L
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