You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[1-[1-(2,3-dihydro-1,4-benzodioxin-6-yl)ethyl]piperidin-3-yl]ethynyl]pyridin-3-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H25N3O2
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