You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-3-[2-(2-methyl-1H-indol-3-yl)ethyl]-2-[[2-(2-methylmorpholin-4-yl)pyridin-4-yl]methyl]guanidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H34N6O
assistant