You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-amino-N-[1-(3,4-dimethoxyphenyl)sulfonyl-3-oxoazepan-4-yl]pentanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H29N3O6S
assistant