Registration Dossier
Registration Dossier
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EC number: 407-830-6 | CAS number: 103335-54-2 DELTA-5-AZA-ACID
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
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guidelines for testing of chemicals No. 201.
- GLP compliance:
- yes
Test material
- Reference substance name:
- 3-oxo-4-azaandrost-5-ene-17β-carboxylic acid
- EC Number:
- 407-830-6
- EC Name:
- 3-oxo-4-azaandrost-5-ene-17β-carboxylic acid
- Cas Number:
- 103335-54-2
- Molecular formula:
- Hill formula: C19H27NO3 CAS formula: C19H27NO3
- IUPAC Name:
- 4a,6a-dimethyl-2-oxo-1H,2H,3H,4H,4aH,4bH,5H,6H,6aH,7H,8H,9H,9aH,9bH,10H-indeno[5,4-f]quinoline-7-carboxylic acid
Constituent 1
Test solutions
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersal: Sterile nutrient medium
Test organisms
- Test organisms (species):
- other: Selenastrum capricornutum, Strain No. CCAP 278/4
Study design
- Limit test:
- no
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 25.21 mg/L
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 25.21 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- > 25.21 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- > 25.21 mg/L
- Basis for effect:
- biomass
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
