You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 6-methyl-3-(5-methyl-2-sulfanyloxyphenyl)tricyclo[6.5.0.02,7]trideca-1(13),2,4,6,9,11-hexaene ?
user
C21H18OS
assistant