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 6-ethyl-5-[(4-hydroxycyclohexyl)amino]-3-[4-(4-propan-2-ylpiperazin-1-yl)anilino]pyrazine-2-carboxamide ?
user
C26H39N7O2
assistant