1038478-70-4

ethyl 3-oxo-4H-1,4-benzoxazine-7-carboxylate Ethyl3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-7-CARBOXYLATE 3,4-Dihydro-3-oxo-2H-1,4-benzoxazine-7-carboxylic acid ethyl ester 2H-1,4-Benzoxazine-7-carboxylic acid, 3,4-dihydro-3-oxo-, ethyl ester