You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R)-N-[2,3-dichloro-4-(2-hydroxybutylsulfanyl)phenyl]-3,3,3-trifluoro-2-hydroxy-2-methylpropanamide by IUPAC nomenclature, provide its molecular formula.
user
C14H16Cl2F3NO3S
assistant