You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-chloro-3-methyl-5-prop-2-ynoxy-5-(trifluoromethyl)-1,4-dihydro-1,3-benzodiazepin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H12ClF3N2O2
assistant