Synonyms2-acetoxybenzoic anhydride; Aspirin anhydride; Acetylsalicylic anhydride Close 2-acetoxybenzoic anhydride; Aspirin anhydride; Acetylsalicylic anhydride Related products Carbasalate Calcium Impurity A M.F. M.W. 342.31 CAT# AR-C01347 CAS# 1466-82-6 Carbasalate Calcium Salt M.F. M.W. 2 179.15 60.06 40.08 CAT# AR-C01349 CAS# 5749-67-7