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Short-term toxicity to aquatic invertebrates

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Description of key information

A daphnia acute immobilization test (48 hours) was performed in order to examine the short- term aquatic toxicity of the test substance to invertebrates. An EC50 value of 362 mg/L was obtained.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
362 mg/L

Additional information

Daphnia (daphnia magna) acute immobilization test (48 hours) was assessed similarly to OECD 202 guideline with the test substance in the following concentrations: 53, 95, 171, 309, 556, 1000 mg/L. The test substance tends to split immediately to two components in aqueous solution. Its half-life is about 1 hour, and it almost fully decomposes for 5 to 6 hours. Therefore, concentration of the test substance in a test solution was not measured. Thus, the test result was calculated in accordance with a target concentration. Under the test conditions the EC50 value (48 h, immobilization) obtained was 362 mg/L.