You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-methyl-N-[1-(1H-1,2,4-triazol-5-yl)ethyl]-[1,2,4]triazolo[1,5-a]pyridin-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H13N7
assistant