You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N,N-diethylethanamine;[[(2R,3S,4R,5R)-3,4-dihydroxy-5-(5-iodo-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] hydrogen phosphate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H38IN3O17P2
assistant