2-Methoxy-1,7,9-trimethylpurine-6,8-dione51168-26-437 % similar 1,3-Dipropyl-7-methylxanthine31542-63-937 % similar Paraxanthine611-59-636 % similar 9-(2-Hydroxyethyl)adenine707-99-334 % similar Theobromine83-67-033 % similar IBMX28822-58-433 % similar 2-Methyl-1H-imidazole-1-ethanol1615-15-233 % similar Tris(hydroxyethyl) isocyanurate839-90-733 % similar 1,3-Dimethyluric acid944-73-031 % similar Englate8000-10-031 % similar 1-Methylxanthine6136-37-431 % similar 5,6-Diamino-1,3-dimethyluracil5440-00-630 % similar