bn:00000840n
Noun Concept
Categories: Acetylating agents, Lachrymatory agents, Solvents, Carboxylic anhydrides
EN
acetic anhydride  (CH3CO)2O  Ac2O  Acetanhydride  Acetic acid, anhydride
EN
A compound that is needed in order to refine opium into heroin WordNet 3.0
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