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Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

A GLP study was performed in accordance with OECD guideline 203, in order to assess the acute toxicity of 2,2,6,6-tetramethyl-4-oxopiperidinooxy to rainbow trout (Oncorhynchus mykiss).
The 96 hour LC50 was determined to be 89 mg ai/l, based on nominal concentrations. The No Observed Effect Concentration (NOEC) was 56 mg ai/L.

Key value for chemical safety assessment

LC50 for freshwater fish:
89 mg/L

Additional information

A reliability rating of 1 was assigned to the key study, according to the criteria of Klimisch 1997, as the study was conducted in accordance with recognised guidelines and GLP.