3-(2,2-Dimethyl-1-phenylcarbamoylhydrazino)-2-methoxycarbonylmethylpropionate 96804-14-7 Butanedioic acid, (2,2-dimethyl-1-((phenylamino)carbonyl)hydrazino)-, dimethyl ester Dimethyl (2,2-dimethyl-1-((phenylamino)carbonyl)hydrazino)butanedioate