25816-88-0 Acetamidine, N'-(9-beta-D-arabinofuranosyl-9H-purin-6-yl)-N,N-dimethyl- N'-(9-beta-D-Arabinofuranosyl-9H-purin-6-yl)-N,N-dimethyl-acetamidine N(sup 6)-(Dimethylamino)ethylidene(9-beta-D-arabinofuranosyl)adenine