| Melting point 300 °C | Appearance White, crystalline | |
 | ||
| IUPAC ID 1,3,7-trimethyl-9H-purine-2,6,8-trione | ||
1,3,7-Trimethyluric acid, also referred to as trimethyluric acid and 8-oxy-caffeine, is a purine alkaloid that is produced in some plants and occurs as a minor metabolite of caffeine in humans. The enzymes that metabolize caffeine into 1,3,7-trimethyluric acid in humans include CYP1A2, CYP2E1, CYP2C8, CYP2C9, and CYP3A4.
References
1,3,7-Trimethyluric acid Wikipedia(Text) CC BY-SA