3H-Imidazo(2,1-i)purine, 9-(5-O-(hydroxy((hydroxy((hydroxy(phosphonooxy)phosphinyl)oxy)phosphinyl)oxy)phosphinyl)-beta-D-ribifuranosyl)-, 5'-5'-ester with 3-beta-D-ribofuransoyl-3H-imidaz(2,1-i)purine 9-(5-O-(Hydroxy((hydroxy((hydroxy(phosphonooxy)phosphinyl)oxy)phosphinyl)oxy)phosphinyl)-beta-D-ribifuranosyl)-3H-imidazo(2,1-i)purine 5'-5'-ester with 3-beta-D-ribofuransoyl-3H-imidaz(2,1-i)purine 96920-51-3 Di(1,N(6)-ethenoadenosine)-5',5'''-P(1),P(4)-tetraphosphate Epsilon(Ap4A)