2H-1-BENZOPYRAN-6-CARBOXYLIC ACID, 3-GLYOXYLOYL-2-OXO-, METHYL ESTER 3-Glyoxyloyl-2-oxo-2H-1-benzopyran-6-carboxylic acid methyl ester 3-Glyoxyloyl-6-carbomethoxycoumarin 5-18-08-00686 (Beilstein Handbook Reference) 6468-78-6 BRN 1385962 SC-347