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 5-chloro-6-ethyl-3-[4-[(E)-1-piperidin-1-ylprop-1-enyl]-3-(trifluoromethyl)anilino]pyrazine-2-carboxamide ?
user
C22H25ClF3N5O
assistant