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: 823-780-1 | CAS number: 1034820-43-3
No toxic effects occur up to the water solubility.
EC50 (24h) = 11 mg/l (nominal)
The evaluation of the toxicity potential of the substance to aquatic invertebrates was done by the assessment of the experimental data on Similar Substance 01. No experimental data are available for the (target) substance. Justification for Read Across is given in Section 13 of IUCLID.
The substance was tested in a non-GLP guideline study according to OECD 202. The mobility of Daphnia magna was assessed after 24 hours of exposure to different concentrations of the substance under static conditions.
Twenty Daphnia magna were exposed to the Similar Substance 01 at 3.2, 5.8, 10, 18, 32 mg/l (nominal). The respective EC0 at 24h was < 3.2 mg/l, the EC100 was 18 mg/l and the EC50 = 11 mg/l. All three values are based on nominal concentrations, which were verified by analytical determinations. The compound was initially suspended in alkylphenol polyglycolether and tetrahydrofuran and dispersed in water. The test compound was present as a suspension and a precipitate formed shortly after the start of the test at concentrations between 3.2 and 32 mg/l.
The EC values obtained represent a worst-case assumption where water solubility is achieved by excessive use of solvent.
The target substance is expected to have similar effects on the aquatic invertebrates and is thus considered to not have any toxic effects up to the limit of water solubility.
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