Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 421-720-5 | CAS number: 18085-02-4
No effects were observed at a concentration of 89.2 mg/L in Daphnia magna. As this is based on data provided by ECHA, full details on this value are not available although this is possibly the highest concentration tested. In Algae a 72 hr NOEC of 69.98 mg/L is provided, again with no indications why higher values were not tested. In an acute toxicity study to fish a 96 hr LC50 of 33.5 mg/L is available, which is the key value for safety assessment as fish appear to be the most sensitive trophic level. Based on this value, no classification in accordance with the CLP regulation (1272/2008, as amended) is relevant for this substance in relation to aquatic acute toxicity. When considering Chronic toxicity, the only available result is an algae study NOEC of 69.98 mg/L. As the substance is not readily biodegradable (not fulfilling 10 -day window criterion), consideration of the acute data is applicable in this case. As the lowest acute LC/EC50 value is > 10 and < 100 mg/L (fish), classification as Aquatic Chronic. 3 is deemed appropriate for this substance.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Close Do not show this message again