9-[4-Nitro-2',5'-dimethoxy-azobenz-4'-yl)-diazo]-julolidine-8]-O-hexyl-[2-cyanoethyl-(N,N-diisopropyl)]-phosphoramidite
5'-Dimethoxytrityloxy-5-[6-(9-[4-nitro-2',5'-dimethoxyazobenz-4'-yldiazo]-julolidin-8-oxy)-hexylamidoethyl-3-acrylimido]-2'-deoxyUridine-3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite