1H-Purine-2,6-dione, 8-[4-(1H-benzimidazol-2-yl)butyl]-3,7-dihydro-1,3-dimethyl- 74039-64-8 8-[4-(2-Benzimidazolyl)butyl]theophylline Benzimidazole, [2-(4-theophyllin-8-yl)butyl]- NSC81509 Theophylline, 8-[4-(2-benzimidazolyl)butyl]- WLN: T56 BM DN FNVNVJ F1 H1 C4- CT56 BM DNJ