Registration Dossier
Registration Dossier
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EC number: 227-022-5 | CAS number: 5601-29-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
Reference
Description of key information
waiving
Key value for chemical safety assessment
Additional information
The algae are usually preferred as reference aquatic plants in a study of growth inhibition. However, coloured substances cause problems in interpreting test algae, because the effects of the absorption of light can interact with potential toxicity; therefore, the inhibition of the growth of algae would no longer be only the result of a toxic action, but also the result of physical phenomena [shading effect] (OECD guideline 221 according to the Guidance on Information Requirements and Chemical Safety Assessment Chapter R.7b: Endpoint specific guidance (Version 2.0 November 2014), published by the European Chemical Agency)
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.
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