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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Semi-static GLP compliant acute toxicity test with Oryzias latipes (medaka) exposed to 2,2'-methylenebis (6 -tert-butyl-4 -ethylphenol)

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
3 mg/L

Additional information

A GLP compliant 96 hour semi-static acute toxicity test with Oryzias latipes (medaka) was performed as part of a bioaccumulation study. The test was performed as limit test at 3.0 mg/L, a vehicle control (HCO-40 and dimethyl sulfoxide) was also included. No effects were observed at the limit concentration and therefore the 96 -h LC50 is >3.0 mg/L.