1H-Purine-2,6-dione, 8-ethyl-3,7-dihydro-1,3-dimethyl- 5770-28-5 8-Ethyltheophylline NSC14294 Theophylline, 8-ethyl- WLN: T56 BM DN FNVNVJ C2 F1 H1 Xanthine, 1,3-dimethyl-8-ethyl-