You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7,10-diazatetracyclo[8.6.1.05,17.012,16]heptadeca-1,3,5(17)-trien-13-yl hydrogen sulfate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H20N2O4S
assistant