2-(1,3-Benzodioxol-5-yl)-6-(4-nitrophenyl)imidazo(2,1-b)-1,3,4-thiadiazole 91918-62-6 Imidazo(2,1-b)-1,3,4-thiadiazole, 2-(1,3-benzodioxol-5-yl)-6-(4-nitrophenyl)-