3H-Indolium, 2-[5-[1,3-dihydro-3,3-dimethyl-1-[3-[[4-oxo-4-[[3-[1,2,3,4-tetrahydro-1-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-2,4-dioxo-5-pyrimidinyl]-2-propyn-1-yl]oxy]butyl]dithio]propyl]-5-sulfo-2H-indol-2-ylidene]-1,3-pentadien-1-yl]-1-ethyl-3,3-dimethyl-...