You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [(3aR,4R,9bS)-4-phenyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-8-yl]-morpholin-4-ylmethanone by IUPAC nomenclature, provide its molecular formula.
user
C23H24N2O2
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