You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[dichloro-[[[(2R,3S,4R,5R)-3,4-dihydroxy-5-[2-oxo-4-sulfanylidene-5-(2-tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaenyl)pyrimidin-1-yl]oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]methyl]phosphonic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H27Cl2N2O13P3S
assistant