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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

With high probability acutely not harmful to fish

Key value for chemical safety assessment

Additional information

The acute toxicity of the substance to fish was tested in a guideline study following OECD guideline 203. The test fish (Brachydanio rerio) were exposed to the test substance for 96 hours in a static test system. A LC50 > 58 mg/l based on analytically determined test concentrations was detected. Though the analytical method suffers from some flaws as probably unsolved test substance was sampled. Therefore the measured test concentrations presumably do not reflect the actual solved test substance concentration. Furthermore the solubility of the substance was increased by the addition of a solubiliser. However, in conclusion the obtained results contribute to the assumption that the substance has no lethal effect on fish in the range of its water solubility. Therefore and for reasons of animal welfare a second test on the acute toxicity of fish is considered as not useful as it will most likely not provide any further information. In addition the suggested long-term toxicity test in Daphnia will provide sufficient information on the aquatic toxicity of the substance.