You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-ethylphenyl)-2-[[5-(2-phenylpropyl)-1,3,4-oxadiazol-2-yl]sulfanyl]propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H24N2O2S
assistant