You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4-chlorophenyl)-5-methyl-4-[(12-methyl-5-thia-1,10,11-triazatricyclo[6.4.0.02,6]dodeca-2(6),3,7,9,11-pentaen-9-yl)sulfanylmethyl]-1,3-oxazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H15ClN4OS2
assistant