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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Long-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Long-term studies on fish are not available for N-butyl-2,2,6,6-tetramethylpiperidin-4-amine (N-butyl TAD). A long-term test with the test substance is not required as the risk assessment reveals no unacceptable effects of the test substance on aquatic organisms (risk characterization ratios <1).

Key value for chemical safety assessment

Additional information

According to column 2 in Annex IX of Regulation (EC) 1907/2006, long-term toxicity tests with aquatic organisms are not needed if the outcome of the chemical safety assessment indicates no unacceptable effects on aquatic organisms. In a first step, the PNEC for the aquatic environment is derived on short-term toxicity.

The risk for the aquatic compartment being exposed to N-butyl-2,2,6,6-tetramethylpiperidin-4-amine (N-butyl TAD) is acceptable as the risk characterization ratios are below 1. Therefore, further tests are not required.