英文别名3-oxo-4H-1,4-benzoxazine-5-carboxylic acid; 3,4-dihydro-3-oxo-2h-1,4-benzoxazine-5-carboxylic acid; 3-Oxo-3,4-dihydro-2H-benzo[1,4]oxazine-5-carboxylic acid; 2H-1,4-Benzoxazine-5-carboxylic acid, 3,4-dihydro-3-oxo-; 3-hydroxy-2H-1,4-benzoxazine-5-carboxylic acid 
