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EC number: 205-252-7 | CAS number: 136-60-7
The study of Dupont (2018), investigating the acute toxicity of butyl benzoate in Daphnia magna according to OECD guideline 202, was considered as the key study for endpoint coverage. An EC50 of 4 mg/L (based on geometric measured test concentrations) was obtained after an exposure of 48 hours in a static test in freshwater. As the test item is a volatile substance, the test was performed using glass tubes completely filled (without headspace) with test medium that were tightly sealed with glass stoppers to avoid losses of test item by evaporation (closed system). A semi-static test design with a test medium renewal after 24 hours was used. It can be concluded that the test item had acute toxic effects on Daphnia magna in a 48-hour semi-static test in a closed system.
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