Registration Dossier
Registration Dossier
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EC number: 417-310-0 | CAS number: 72903-27-6
Endpoint summary
Administrative data
Description of key information
Experimental studies (Klimisch score 1), based on international guidelines, are available to assess the acute toxicity of the registered substance on the three aquatic trophic levels: Algae, Aquatic Invertebrates and Fish; and on Microorganisms. In accordance with column 2 of REACH annex IX, further testing on the long-term effects on aquatic organisms does not need to be conducted as the chemical safety assessment does not indicate a need for further investigation.
Among data available, a toxic effect was found at the three trophic levels. The fish, Oncorhynchus mykiss, is the most sensitive species with a 96h-LC50 at 7.1 mg/L.For the aquatic invertebrates Daphnia magna, the 48h-EC50 was determined at 45 mg/L. For the algae Scenedesmus subspicatus, the 72h-ErC50 and 72h-NOEC values based on growth rate were determined at 86 and 25 mg/L, respectively. Finally, for the activated sewage sludge microorganisms, the 3h-EC50 and 3h-NOEC values were determined at 840 and 320 mg/L, respectively.
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.
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