You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tetraazanium;3-[[1-[2-[bis(3-sulfonatophenyl)phosphanylmethyl]naphthalen-1-yl]naphthalen-2-yl]methyl-(3-sulfonatophenyl)phosphanyl]benzenesulfonate is the IUPAC name of a molecule. Please give its molecular formula.
user
C46H48N4O12P2S4
assistant