183999-58-8 6-(1,1'-Biphenyl-4-yl)imidazo(2,1-b)-1,3,4-thiadiazole-2-sulfonamide Imidazo(2,1-b)-1,3,4-thiadiazole-2-sulfonamide, 6-(1,1'-biphenyl)-4-yl)-