2H-(1)Benzothieno(2,3-e)-1,2-thiazine-3-carboxamide, 4-hydroxy-2-methyl-N-2-thiazolyl-, 1,1-dioxide 4-Hydroxy-2-methyl-N-2-thiazolyl-2H-(1)benzothieno(2,3-e)-1,2-thiazine-3-carboxamide dioxide 74370-58-4