You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[[(2R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,5R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]methyl hydrogen phosphate is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H26N2O17P2
assistant