You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4-bromo-3-chloro-N-(2-thiophen-2-ylacetyl)anilino)-N-cyclohexyl-2-(2-methylphenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H28BrClN2O2S
assistant