673-68-7 Hydrazinecarbothioamide, 2,2'-(1-methyl-1,2-ethanediylidene)bis[N-methyl- NSC23345 PTSM Pyruvaldehyde bis(N4,N4-dimethylthiosemicarbazone) Pyruvaldehyde, bis(4-methyl-3-thiosemicarbazone)