2, 6-Dimethoxybenzoquinone (2, 6-DMBQ) is a benzoquinone, a chemical compound found in Rauvolfia vomitoria and in Tibouchina pulchra.

PRRS-PQGAB-M

1,3,7-Trimethyluric acid is a purine alkaloid that occurs as a minor metabolite of caffeine in humans.?As an antioxidant, it has shown an ability to scavenge hydroxyl radicals as well as protective potential against lipid peroxidation in erythrocyte membranes.