You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[[[3-hydroxy-1-[methyl-[3-(1-methylimidazol-2-yl)propyl]amino]-1-oxopropan-2-yl]amino]methyl]pyridine-4-carboxylic acid into its molecular formula.
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C18H25N5O4
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