In a 1958 patent to Celanese (New York City), inventor Arthur W. Schnizer reported the reaction of acetaldehyde and acetic anhydride with a benzenesulfonic acid catalyst to produce vinyl acetate with ...

"Acetic anhydride, which is a clear solution, is typically used to acetylate the morphine. The resulting resolution is heated ...

They seized large quantities of acetic anhydride and other chemicals used in heroin production. Authorities are concerned about the misuse of acetic anhydride, a chemical with legitimate ...