Azobisisobutyronitrile78-67-1100 % similar Pivalonitrile630-18-242 % similar 2,2'-Azobis(2-methylbutyronitrile)13472-08-740 % similar 2-Amino-2-methylpropanenitrile19355-69-236 % similar Acetone cyanohydrin75-86-536 % similar 2,2'-Azobis(2,4-dimethylvaleronitrile)4419-11-836 % similar 4,4'-Azobis(4-cyano-1-pentanol)4693-47-433 % similar 2,3-Dimethyl-2-(1-methylethyl)butanenitrile55897-64-833 % similar 1,1'-Azobis(cyclohexanecarbonitrile)2094-98-632 % similar