You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-(3-fluoro-4-methylphenyl)-2-[[5-(2-methylpropylsulfanyl)-1,3,4-thiadiazol-2-yl]sulfanyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H20FN3OS3
assistant