Registration Dossier
Registration Dossier
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EC number: 827-162-2 | CAS number: 2218502-12-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- See report in section 13 "Other reports"
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 17.4 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 8.4 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC0
- Effect conc.:
- 3.2 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC0
- Effect conc.:
- 3.2 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
Reference
Description of key information
The short-term toxicity to algae is determined by read-across to the structural analogue substance Direct Black 168 Na salt (CAS 93281 -13 -1). The source and the target substance have the same structure in respect to the anionic constituents.
One test conducted according to the OECD Guideline 201 (Alga, Growth Inhibition Test) on the structural analogue substance resulted on one EC50=17.4 mg/L, and the same results applicable to the target substance.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 17.4 mg/L
Additional information
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.
