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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

4B-Acid did not induce significant acute immobilisation of daphnia magna at 10 mg/l after 48 hours of exposure (NOEC).  The 48h-EC50 based on analytically confirmed nominal concentrations was 21 mg/l (95% CL interval between 16 anf 27 mg/l) 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
21 mg/L

Additional information