You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [4-[1-[3-[ethyl-[3-oxo-7'-[[3-(trifluoromethyl)phenyl]methyl]spiro[2-benzofuran-1,9'-xanthene]-3'-yl]amino]propyl]pyridin-1-ium-4-yl]pyridin-1-ium-1-yl]methyl dihydrogen phosphate into its molecular formula.
user
C44H39F3N3O7P+2
assistant