英文别名2H-3,1-Benzoxazine-6-carboxylic acid, 1,4-dihydro-2,4-dioxo-; 2,4-dioxo-1H-3,1-benzoxazine-6-carboxylic acid; 2,4-Dioxo-1,4-dihydro-2H-3,1-benzoxazine-6-carboxylic acid; 5-carboxyisatoic anhydride; 7-carboxyisatoic anhydride; 2,4-dioxo-2,4-dihydro-1h-benzo{d}{1,3}oxazine-6-carboxylicacid; 5-carboxylisatoic anhydride; 6-Carboxyisatosaeureanhydrid 
