1H,10H-Pyrrolo(1,2-c)purine-9,10,10-triol, 2,6-diamino-4-(((aminocarbonyl)oxy)methyl)-3a,4,8,9-tetrahydro-, 9-(hydrogen sulfate), (3aS,4R,9R,10aS)- 60508-89-6 Gonyautoxin II