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EC number: 239-825-8 | CAS number: 15733-22-9
Key parameters for classification
Biodegradation: readily biodegradable (83% degradation after 28 d, DOC removal, EU-method C. 4-B)
log Pow: 2.73 at pH 7.2 and 25 °C (nonionic form)
Aquatic acute toxicity
For fish: 96 h, LC50 : 0.917 mg/L (arithmetic mean measured concentration; Oncorhynchus mykiss, EPA OPP 72-1)
For aquatic invertebrates: 48 h, EC50 : 2.29 mg/L (measured arithmetic mean concentration; Daphnia magna, EPA OPP 72-2)
For algae/aquatic plant: 72 h, ErC50 : 30.62 mg/L (nominal; Pseudokirchneriella subcapitata, OECD 201)
Aquatic chronic toxicity
For fish: 28 d, NOEC: 0.15 mg/L (measured concentration; (Oncorhynchus mykiss, OECD 215)
For aquatic invertebrates: 21 d, NOEC : 0.32 mg/L (nominal; Daphnia magna, OECD 211)
For algae/aquatic plant: 72 h, ErC10 (Pseudokirchneriella subcapitata, OECD 201): 13.37 mg/L (nominal)
Based on the data above the substance has to be classified as Aquatic Acute 1 (H400) since the acute effect concentration for freshwater fish is < 1 mg/L. For chronic toxicity, data from three different trophic levels are available. Freshwater fish turned out to be the most sensitive species with a NOEC (28 d) of 0.15 mg/L. In combination with the results from biodegradation the substance is classified as Aquatic Chronic 3 (H412) according to Regulation (EC) No 1272/2008 (consolidated version) and all following amendments (ATPs).
M-Factor acute: 1 M-factor chronic: not relevant
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.
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