You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-(5-methyl-4-propan-2-yl-1,2,4-triazol-3-yl)-2,3-dihydro-1H-indole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H18N4
assistant