You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-[4-[(2R)-2-ethylhexanoyl]piperazin-1-yl]-N-[2-(4-fluorophenyl)ethyl]-4-methoxybenzenesulfonamide ?
user
C27H38FN3O4S
assistant