5399-87-1 6-Chloro-9-beta-D-ribofuranosyl-9H-purine 6-Chloronebularine 6-Chloropurine riboside 6-Chloropurinosine 9H-Purine, 6-chloro-9-beta-D-ribofuranosyl- (8CI)(9CI) AI3-50219 EINECS 226-438-4 NSC 4910