Registration Dossier
Registration Dossier
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EC number: 204-473-6 | CAS number: 121-47-1
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Essential information to cover endpoint supplied by study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 987
- Report date:
- 1987
Materials and methods
- Principles of method if other than guideline:
- no guideline available
- GLP compliance:
- no
Test material
- Reference substance name:
- 3-aminobenzenesulphonic acid
- EC Number:
- 204-473-6
- EC Name:
- 3-aminobenzenesulphonic acid
- Cas Number:
- 121-47-1
- Molecular formula:
- C6H7NO3S
- IUPAC Name:
- 3-aminobenzene-1-sulfonic acid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- not specified
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
- Details on test organisms:
- - Strain: SAG 86.91
- Culturing medium: OECD medium
- Culturing temperature: 20°C
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
Test conditions
- Test temperature:
- 20°C
- Nominal and measured concentrations:
- - Concentrations tested (nominal): 1.953, 3.906, 7.813, 15.625, 31.25, 62.5, 125 and 250 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: Erlenmeyer vessels (250 ml)
- Test volume: 100 ml
- Initial cell volume: 10000 cells/ml
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC20
- Effect conc.:
- 77.8 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 108.6 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Duration:
- 72 h
- Dose descriptor:
- EC90
- Effect conc.:
- 242.3 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
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.
