You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(4-chlorophenyl)sulfanyl-N-[(4-hydroxypyrrolidin-3-yl)methyl]propanamide;hydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C14H20Cl2N2O2S
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