1,3,7,9-Tetramethyluric acid 1H-Purine-2,6,8(3H)-trione, 7,9-dihydro-1,3,7,9-tetramethyl- 2309-49-1 AI3-52596 Ba 2750 EINECS 218-994-1 NSC 8809 Temorine Temurin Tetramethyluric acid Uric acid, 1,3,7,9-tetramethyl- (8CI)