You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(1S,2R)-2-(furan-2-yl)cyclopropyl]-[4-(2-methoxyphenyl)piperazin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
user
C19H22N2O3
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