You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-2-[2-[5-(4-chlorophenyl)sulfanylfuran-2-yl]imidazol-1-yl]propanamide by IUPAC nomenclature, provide its molecular formula.
user
C16H14ClN3O2S
assistant