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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

With high probability epsilon-Caprolactam is acutely not harmful to fish.

Key value for chemical safety assessment

LC50 for freshwater fish:
100 mg/L

Additional information

As key study a semistatic GLP test (2002) according to OECD guideline 203 performed at the Mitsubishi Chemical Safety Institute for the Ministry of Environment, Gouvernment of Japan with Medaka as test species resulted in a LC50 (96h) >100 mg/l based on measured concentrations. The supporting study by BASF (1987) also according to OECD guideline 203 is backing this result with a LC50 (96h) of 707.1 mg/l (nominal).