4-Methy1-4-phenylthiosemicarbazide. This compound was prepared from carboxymethyl N- methyl-N-phenyl dithiocarbamate12 (8.8 g.), which was heated on a water bath with excess hydrazine hydrate (15 ml. of SOOj,) for 10 min. After cooling to roam temperature the mixture wa8 diluted with an equal volume of water and the precipitate collected.
