You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name (4aS,8aR)-2-benzyl-4-(2-sulfanylidene-3H-1,3,4-oxadiazol-5-yl)-4a,8a-dihydrophthalazin-1-one ?
user
C17H14N4O2S
assistant