You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-(4-ethylpiperazine-1-carbonyl)-2-piperazin-1-ylphenyl]-3,4-dimethoxybenzenesulfonamide;2,2,2-trifluoroacetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H36F3N5O7S
assistant