Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 203-532-3 | CAS number: 107-92-6
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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