115242-38-1 2-Ethyl-7-nitro-3,4-dihydro-2H-1,2,5-thiadiazino(5,6-a)benzimidazole 1,1-dioxide 2H-1,2,5-Thiadiazino(5,6-a)benzimidazole, 3,4-dihydro-2-ethyl-7-nitro-, 1,1-dioxide 3,4-Dihydro-2H-2-ethyl-7-nitro-(1,2,5)-thiadiazino(5,6-a)benzimidazole 1,1-dioxide