You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-imidazol-1-yl-N',4-dimethyl-N-[(6-propoxypyridin-3-yl)methyl]piperidine-1-carboximidamide by IUPAC nomenclature, provide its molecular formula.
user
C20H30N6O
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