134616-45-8 2H-1,4-Benzothiazine-2-acetamide, 3,4-dihydro-N-(2-methylphenyl)-3-oxo- BRN 4819335 N-(2-Methylphenyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-acetamide