You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[2-[1,3-benzodioxol-5-yl(ethylsulfonyl)amino]acetyl]-[(4-bromophenyl)methyl]amino]-N-[(2R)-butan-2-yl]-3-phenylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H36BrN3O6S
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