1,3,7,9-Tetramethyluric acid 1H-Purine-2,6,8(3H)-trione, 7,9-dihydro-1,3,7,9-tetramethyl- 2309-49-1 Ba 2750 NSC8809 TETRAMETHYLURIC ACID Temorine Temurin Uric acid, 1,3,7,9-tetramethyl-