5'-Adenylic acid, monoanhydride with imidodiphosphoric acid, 3'-(4-((4-azido-2-nitrophenyl)amino)butanoate) 84625-58-1 N-4-Azido 2-nitrophenyl gamma-aminobutyryl-5-adenylyl imidodiphosphate Nap(4)-adoppnhp Nap(4)-ppnhp