You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1Z,6Z,11Z,16Z)-4,9,14,19-tetraphenyl-3,10,13,20-tetrathiapentacyclo[15.3.0.02,6.07,11.012,16]icosa-1,4,6,8,11,14,16,18-octaene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H24S4
assistant