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EC number: 420-640-8 | CAS number: 138495-42-8
The lowest effect concentration for the test substance is the NOEC of 1.72 mg/L for daphnids based on reproduction during a 21-day reproduction study. Since a full base set of acute aquatic test data is available, as well as the 21-day NOEC for reproduction of Daphnia magna and a 72-hour NOEC for growth rate of Pseudokirchneriella subcapitata, an assessment factor of 50 is appropriate for calculation of a PNEC aqua-freshwater. The Predicted No Effect Concentration for surface water is PNECwater= 0.0344 mg/L.
The test substance is a highly volatile compound that is not expected to bind to soil and emission to soil is unlikely during use.
Based on the physicochemical properties of the test substance and no expected emissions to sewage treatment plants, it was not considered useful to derive a PNECSTP.
Based on a log Kow < 3.0, limited potential for exposure and bioaccumulation and lack of classification for toxicological effects in mammals, it was not considered useful to derive a PNECoral.
Although the substance is currently listed in Annex VI, the results of an invertebrate chronic life-cycle test with Daphnia magna conducted since the original classification was proposed, in conjunction with existing data, indicate that the substance does not pose a hazard to the aquatic environment. Based on these new test results, the substance would not be classified for the environment with regard to abiotic hazard or adverse effects in the aquatic environment according to 67/548/EEC self classification or CLP regulations.
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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