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Short-term toxicity to fish

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Link to relevant study record(s)

Description of key information

The substance is with high probability acutely not harmful to fish.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

A study on a close structural substance (CAS 16090-02-1) is available in order to determine the acute toxicity to fish. The study demonstrates that the substance is with a high probability acutely not harmful to fish (LC50 value in fish exceeds 100 mg/L). Therefore, also the substance with CAS 133-66-4 is considered with high probability not acutely harmful to fish.