13182-58-6 2H-Purin-2-one, 1,3,6,7-tetrahydro-1,3,7-trimethyl-6-thioxo- 5-26-14-00153 (Beilstein Handbook Reference) 6-Thiocaffeine BRN 0205182 CAFFEINE, 6-THIO- M & B 6227