You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(2-aminoethylamino)-hydroxyphosphoryl]oxy-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-oxophosphanium into its molecular formula.
user
C12H21N7O12P3+
assistant