... stable and safe,competitive price 2,2'-azobis(2-methylpropionamide) dihydrochloride,AIBA,water soluble azo initiator, 98%,free of cyano groupSpecification ... polymerization 2,2'-Azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride,VA-044,water soluble azo initiator, 98%