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7-CHLORO-2H-1,4-BENZOTHIAZIN-3(4H)-ONE (3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL)ACETIC ACID ETHYL 2-(3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL) ACETATE 2-methyl-3,4-dihydro-2H-1,4-benzothiazine 2,2-dimethyl-6-nitro-3,4-dihydro-2H-1,4-benzothiazine 2-[(4-METHOXYANILINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE