6-(4-Bromophenyl)-2-(3,5-dimethoxy-4-ethoxyphenyl)imidazo(2,1-b)-1,3,4-thiadiazole 91918-71-7 Imidazo(2,1-b)-1,3,4-thiadiazole, 6-(4-bromophenyl)-2-(3,5-dimethoxy-4-ethoxyphenyl)-