You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[3-(4-methylsulfanylphenyl)-1,2,4-oxadiazol-5-yl]-3-(3-phenylpropyl)-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H28N4O3S
assistant