英文同义词: | 3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid;3,4-DIHYDRO-2H-1,4-BENZOXAZINE-2-CARBOXYLIC ACID;4-Methyl-3,4-dihydro-2h-1,4-benzoxazine-7-carboxylic acid, 90+%;3,4-dihydro-2H-benzo[1,4]oxazine-2-carboxylic acid;2H-1,4-Benzoxazine-2-carboxylic acid, 3,4-dihydro- |