You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[2-[4-(4-methoxyphenyl)sulfonylpiperazin-1-yl]acetyl]-2-methyl-1-[[2-(trifluoromethyl)phenyl]methyl]pyrrole-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C27H29F3N4O5S
assistant