Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

A abiotic hydrolysis study was conducted to determine the stability of the test article in water at pH values of 4, 7, and 9. Isobutyric anhydride was added to vials containing double distilled water, aquatic culture water, or buffered double distilled water. Half-lives in the various media ranged from 1.8 to 20.6 minutes. In buffered solutions of pure water at neutral pH, the half life was 5.2 -8.9 minutes. The studies also documented the formation of isobutyric acid from the addition of the anhydride to water.