You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloro-6-(2-methylsulfanylpropan-2-yl)-8,12-dioxa-1,3,5-triazatricyclo[8.4.0.02,7]tetradeca-2,4,6-triene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H18ClN3O2S
assistant