2-Acetylpyridine-4-methyl-3-thiosemicarbazone 4-Methyl-1-(1-(2-pyridyl)ethylidene)-3-thiosemicarbazide 75013-64-8 KETONE, METHYL 2-PYRIDYL, 4-METHYL-3-THIOSEMICARBAZONE NSC 293870 Semicarbazide, 4-methyl-1-(1-(2-pyridyl)ethylidene)-3-thio-