You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethylsulfonyl-N-[[1-[(4-fluorophenyl)methyl]indol-3-yl]methylideneamino]piperidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H27FN4O3S
assistant