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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

In a study conducted comparable to OECD Guideline 203 and under flow-through conditions, a 96 h LC50=0.638 mg/L was determined using Oncorhynchus mykiss as test organism. 

Key value for chemical safety assessment

LC50 for freshwater fish:
0.638 mg/L

Additional information

Three acute tests with two freshwater species are available (Onchorhynchus mykiss, Pimephales promelas) with 96 h LC50 values of 0.044, 0.097 and 0.638 mg/L. Concerning the effects on fish the study of Hodson et al. (1984) and the LC50=0.638 mg/L is preferred because the test performance generally fulfills the requirements of the OECD Guideline 201, contrary to the other two tests.