You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[4-[(4-ethoxyphenoxy)methyl]phenyl]-10-thia-3,5,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H18N4O2S
assistant