You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[1-(2,6-dimethylpyridin-3-yl)ethenyl]-3-prop-1-en-2-ylpyrazolo[1,5-a]pyridine;N-methyl-N-propylpropan-1-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H36N4
assistant