Registration Dossier
Registration Dossier
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EC number: 201-171-6 | CAS number: 79-04-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Key studies: Chloroacetyl chloride hydrolyzes quickly to chloroacetic acid. Data on chloroacetic acid are provided. Experimental results: Two studies with Scenedesmus subspicatus were independently performed at two different laboratories. The obtained results for biomass and growth were within the same range, i.e. 25-28 μg/l for biomass and 30-70 μg/l for growth (48-72 hour EC50-values). The results obtained in these studies support the classification included in the harmonised classification and labelling list.
Key value for chemical safety assessment
Additional information
Key studies: Chloroacetyl chloride hydrolyzes quickly to chloroacetic acid. Data on chloroacetic acid are provided. Experimental results: Two studies with Scenedesmus subspicatus were independently performed at two different laboratories. The obtained results for biomass and growth were within the same range, i.e. 25-28 μg/l for biomass and 30-70 μg/l for growth (48-72 hour EC50-values). The results obtained in these studies support the classification included in the harmonised classification and labelling list.
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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