17416-85-2 5-26-13-00225 (Beilstein Handbook Reference) 5427-20-3 6H-Purine-6-thione, 9-ethyl-1,9-dihydro- (9CI) 9-ETHYL-6-MERCAPTOPURINE 9-Ethyl mercaptopurine 9-Ethyl-1,9-dihydro-6H-purine-6-thione 9-Ethyl-6-MP 9H-Purine-6(1H)-thione, 9-ethyl- 9H-Purine-6-thiol, 9-ethyl- AI3-50230 BRN 0162062 NSC 14575