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What is the molecular formula of the molecule identified by 3-cyclopentyl-5-[[9-methyl-2-(4-methylpiperazin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one ?
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C23H27N5O2S2
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