115906-56-4 2H-Imidazo(5,1-b)(1,3)thiazin-3-ol, 3,4-dihydro-6-methyl-8-nitro- 3-Methyl-1-nitro-3,5,6,7-tetrahydro-2H-imidazo(5,1-b)(1,3)thiazin-6-ol BRN 5558182