2-N-[6-[[4-[6-[[4,6-bis(dibutylamino)-1,3,5-triazin-2-yl]-(2,2,6,6-tetramethyl-1-propoxypiperidin-4-yl)amino]hexyl-[5-methyl-5-[methyl(propoxy)amino]hexan-3-yl]amino]-6-[butyl-(2,2,6,6-tetramethyl-1-propoxypiperidin-4-yl)amino]-1,3,5-triazin-2-yl]-[5-methyl-5-[methyl(propoxy)amino]hexan-3-yl]amino]hexyl]-4-N,4-N,6-N,6-N-tetrabutyl-2-N-(2,2,6,6-tetramethyl-1-propoxypiperidin-4-yl)-1,3,5-triazine-2,4,6-triamine