You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-[[2-(dimethylamino)-5-[(4-methoxyphenyl)sulfonylamino]phenyl]methyl]-N-(2-methylpropyl)-2-phenylbutanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H39N3O4S
assistant