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EC number: 946-188-6
CAS number: -
A study was performed to assess the chronic toxicity of the test item to Daphnia magna. The method followed was designed to be compatible with the OECD Guidelines for Testing of Chemicals (2012) No 211, "Daphnia magna Reproduction Test" referenced as Method C.20 of Commission Regulation (EC) No. 440/2008. Based on the results of a preliminary range-finding test, Daphnia magna were exposed (10 replicates of a single daphnid per group) to solutions of the test item at nominal concentrations of 0.63, 1.25, 2.5, 5.0 and 10 mg/L for a period of 21 days. The numbers of live and dead adult Daphnia and young daphnids (live and dead) were determined daily. The Daphnia were fed daily with a mixture of algal suspension and GM 300 feed suspension.
The NOECs for immobilisation, reproduction and body length were at 10, 5.0 and 5.0 mg/L, respectively. The respective EC10s were at >10, 9.5 and >10 mg/L; all EC50s were at >10 mg/L and. LOECs were at >10, 10 and 10 mg/L, respectively.
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