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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

The EC10 and EC50 of 1,1,3,3-tetramethylbutyl 2-ethylperoxyhexanoate for activated sludge after 3 hours contact time are > 1276 mg/L.

Key value for chemical safety assessment

Additional information

One OECD 209 test carried out under GLP is available. 1,1,3,3-tetramethylbutyl 2-ethylperoxyhexanoate was found to be non toxic to activated sludge up to 1276 mg/L (loading rate).