1-Ethyl theobromine 1-Ethyl-3,7-dihydro-3,7-dimethyl-1H-purine-2,6-dione 1-Ethyl-3,7-dimethyl-xanthine 1-Ethyltheobromine 1H-Purine-2,6-dione, 1-ethyl-3,7-dihydro-3,7-dimethyl- (9CI) 39832-36-5 5-26-13-00562 (Beilstein Handbook Reference) BRN 0225307 NSC 515486 Theobromine, 1-ethyl-