2 2'-azobis(2 4-dimethylpentane nitrile) July 8, 2019 16 32 64 128 2 2'-azobis(2 4 dimethylpentane nitrile) 2 2'-azobis(2 4-dimethylvaleronitrile) 2 methyl 2 butanol 2 2′-azobis(2-methylpropionitrile)