1-<2-(N-Aethoxycarbonylmethyl-thiolcarbamoyl)-aethyl>-3-aethoxycarbonylmethyl-harn-stoff, S-<2-(N'-Aethoxycarbonylmethyl-ureido)-aethyl>-thiokohlensaeure-aethoxycarbo-nylmethyl-amid 在
sodium hydroxide 作用下,
生成
N-Carboxymethyl-N'-(2-mercapto-aethyl)-harnstoff