1-(3-Methylphenyl)-3,3a-dihydropyrrolo(3,2-b)(1,4)benzothiazin-2(1H)-one 134616-48-1 BRN 4816732 Pyrrolo(3,2-b)(1,4)benzothiazin-2(1H)-one, 3,3a-dihydro-1-(3-methylphenyl)-