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For the assessment of the aquatic toxicity of the substance, GLP guideline studies are available for its short-term toxicity towards two trophic levels (aquatic invertebrates and algae) and for its long-term toxicity towards one trophic level (algae). The two effect concentrations for acute toxicity are in the same order of magnitude, but aquatic invertebrates were slightly more sensitive with an EC50 (48 h) of 32 mg/L (nominal). The chronic effect concentration is an ErC10 (72 h) for algae of 24 mg/L (nominal).