Acetic anhydride is an organic compound with the formula CH3CO2O. It is the simplest isolable anhydride of carboxylic acid and is widely used as a reagent in organic synthesis. Acetic anhydride ...

VARIOUS attempts have been described 1 to acetylate alginic acid by means of acetic anhydride or acetic acid, without or with catalysts, for example, pyridine, acids, etc. Some of the products ...