72040-61-0 Adenosine 5'-(hexahydrogen-pentaphosphate), P''''-5'-ester with 3-beta-D-ribofuranosyl-3H-imidazo(4,5-g)quinazolin-8-amine P(1)-(Lin-benzo-5'-adenosyl)-P(5)-(5'-adenosyl)pentaphosphate