3-(2,2-Dimethyl-1-methylcarbamoylhydrazino)-2-methoxycarbonylmethylpropionate 96804-13-6 Butanedioic acid, (2,2-dimethyl-1-((methylamino)carbonyl)hydrazino)-, dimethyl ester Dimethyl (2,2-dimethyl-1-((methylamino)carbonyl)hydrazino)butanedioate