Isobutyric acid

Isobutyric acid (CAS 79-31-2), also known as isobutanoic acid, is a short-chain branched carboxylic acid used across food, fragrance, and pharmaceutical manufacturing. It functions primarily as a chemical intermediate and flavoring agent. The compound is identified by FEMA 2222 and serves as a pH regulator in industrial and specialty formulations. In flavor and fragrance production, it serves as a precursor to isobutyrate esters.

These compounds deliver fruity, cheesy, and buttery notes in food products and perfumery. Pharmaceutical manufacturers use it as a synthetic intermediate in the production of active ingredients and excipients. It is particularly useful for applications requiring branched-chain acid building blocks. In personal care formulations, isobutyrate derivatives contribute to fragrance profiles in lotions and shampoos.

The acid also functions as a catalyst precursor and pH-adjusting agent in specialty chemical synthesis and fermentation processes. It is supplied as a colorless liquid in drum, IBC, and bulk quantities. Food-grade material meeting FCC specifications is available for flavor and food additive applications. Technical-grade material is offered for industrial synthesis and non-food uses.