You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named [1-[(2-methylimidazo[1,2-a]pyridin-3-yl)methyl]piperidin-4-yl]-phenylmethanol is given. What is its corresponding molecular formula?
user
C21H25N3O
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