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EC number: 500-336-2 | CAS number: 157348-58-8
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In the acute immobilization test with Daphnia magna (STRAUS), the effects of the test item were determined according to 92/69/EWG, C2 and OECD 202. The study was conducted understatic conditions over a period of 48 hours. According to a previous screening test for range finding (without GLP), a limit test with the WAF of 10.2 mg/l in dilution water was performed. Twenty daphnids (divided into 4 replicates with 5 daphnids each) were exposed to the WAF and the control. The concentrations of the test item were analytically verified via the DOC analysis. The WAF was analysed in separate vessels without organisms at 0, 24 and 48 h and additionally at the end of the experiment with organisms. The recovery rate of the test item was between 89.4% and 44.8%. The quite low recovery rate of 44.8% after 24h is due to an elevated DOC content of the control. The loading rate is determined between 4.6 and 9.1mg/l (averaged:7.2mg/l) which is higher than the water solubility of the test item. There is no substantial difference between vessels with and without organisms after 48 hours. Based on the observations, the test item did not affect the swimming capacity of the Daphnia after 48 hours.
Key value for chemical safety assessment
Additional information
The test item did not affect the swimming capacity of the Daphnia after 48 hours.
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