You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(2-ethoxyphenyl)-9-(4-propoxyphenyl)-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H32N2O3
assistant