Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH3CO)2O. Commonly abbreviated Ac2O, it is the simplest isolable anhydride of a carboxylic acid and is widely used ...

Officers intercepted four vehicles, including a container truck from Uttar Pradesh. In all, 49kg of heroin and 387kg of acetic anhydride, a chemical reagent, estimated to be worth around ₹100 crore,we ...