You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-N-[7,7-dimethyl-1-[[4-(2-methylphenyl)piperazin-1-yl]sulfonylmethyl]-2-bicyclo[2.2.1]heptanyl]-4-methylsulfonyl-2-(piperidin-4-ylamino)butanamide by IUPAC nomenclature, provide its molecular formula.
user
C31H51N5O5S2
assistant