You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[2-[[1-[(4-chlorophenyl)methyl]piperidin-4-yl]amino]-2-oxoethyl]-2,2-dimethylpropanamide by IUPAC nomenclature, provide its molecular formula.
user
C19H28ClN3O2
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