2H-1-BENZOPYRAN-6-CARBOXYLIC ACID, 3-ACETYL-2-OXO-, METHYL ESTER 3-Acetyl-2-oxo-2H-1-benzopyran-6-carboxylic acid methyl ester 3-Acetyl-6-carbomethoxycoumarin 5-18-08-00582 (Beilstein Handbook Reference) 6468-74-2 BRN 1383306 SC-359