The invention relates to chemistry and medicine, in particular to a biologically active organic compound of the thiosemicarbazide class and can be used for preventing and treating human myeloid leukemia.According to the invention, claimed is 2-{[(prop-2-en-1-ylcarbamothioyl)hydrazino]methyl} pyridinium nitrate compound of formula:which has human myeloid leukemia HL-60 cell proliferation inhibitor properties.
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