Registration Dossier

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Valid experimental data are available for the endpoints 6.1.1 - short-term toxicity to fish, 6.1.3 - Short-term toxicity to aquatic invertebrates, 6.1.5 - toxicity to aquatic algae and cyanobacteria and 6.1.7 - Toxicity to microorganisms. For the other endpoints obligatory for REACH, waiving arguments are used.


Short-term-toxicity to fish


The LC50 value of butyric acid will be calculated on basis of the LC50 for valeric acid (Mattson, 1976) using the respective molecular weights (88.11 and 102.13).


The 96-h LC50 for butyric acid is assessed to be 66.4 mg/L.