乙基4-羟基-2-甲基-2H-1,2-苯并噻嗪-3-羧酸盐 1,1-二氧化物;4-羟基-2-甲基-1,1-二氧化-2H-1,2-苯并噻嗪-3-羧酸乙酯;2-甲基-4-羟基-2H-1,2-苯并噻唑(嗪)-3-羧酸乙酯-1,1-二氧化物;

(4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid ethyl)1,1-dioxide;2-benzothiazine-3-carboxylic acid ethyl ester-1;2-Methyl-4-hydroxy-2H-1;ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazin-3-carboxylate 1,1-dioxide;4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate of ethyl-1,1-dioxide;