You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[5-(cyclopropylmethoxy)spiro[chromene-2,4'-piperidine]-4-yl]-N,N-diethylpyridine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C27H33N3O3
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