You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [[[(2S,3S,4R,5S)-3,4-dihydroxy-5-(4-methoxyphenoxy)oxolan-2-yl]methyl-hydroxyphosphoryl]-hydroxyphosphoryl]-dihydroxy-phosphanylphosphanium .
user
C12H21O11P4+
assistant