You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[[5-[4-(2-ethylhexylamino)azepan-1-yl]sulfonylthiophen-2-yl]methyl]-3-methoxybenzamide by IUPAC nomenclature, provide its molecular formula.
user
C27H41N3O4S2
assistant