Acetic anhydride

Acetic anhydride (CAS 108-24-7) is a high-volume acetylating agent used across chemical manufacturing to introduce acetyl groups into organic compounds. It functions as both a reactive intermediate and a solvent in synthesis processes. In pharmaceuticals, it is a critical intermediate in the production of aspirin, acetaminophen, and various cellulose acetate-based excipients. The textile and paper industries rely on it for acetylating cellulose.

This process produces cellulose acetate fibers and coatings with improved dimensional stability. In agrochemical manufacturing, it serves in the synthesis of herbicide and pesticide active ingredients requiring acetylation steps. Plastics producers use it to initiate acetylation of polyvinyl alcohol, yielding polyvinyl acetate and related polymer intermediates. Acetic anhydride is supplied as a clear liquid in bulk quantities for industrial procurement.

Available packaging includes ISO tank, drum, and IBC formats suited to large-scale operations. Technical grade is the standard offering for most industrial synthesis and chemical manufacturing applications. Pharmaceutical-grade material meeting USP and BP specifications is available for regulated manufacturing environments. These grades ensure the purity documentation and traceability required for compliance.