Trans-3,5-dimethoxystilbene-4'-O-β-D-glucopyranoside

Trans-3,5-dimethoxystilbene-4'-O-β-D-glucopyranoside, also known as pterostilbene 4′-O-β-D-glucoside, is a naturally occurring phytochemical belonging to the stilbene family . It is found in various plants including grapes, blueberries, and rosewood, and is structurally similar to the well-known polyphenol resveratrol found in red wine. Chemically, it is a glycosylated derivative of pterostilbene, where a glucose moiety is attached at the 4' position . This glycosylation significantly enhances its bioavailability and stability compared to resveratrol, making it a preferred compound for therapeutic and nutraceutical applications. The compound exhibits potent antioxidant properties by scavenging free radicals and enhancing the activity of endogenous antioxidant enzymes, thereby protecting cells from oxidative stress and associated damage. It also demonstrates significant anti-inflammatory effects by inhibiting the production of pro-inflammatory molecules and modulating key signaling pathways involved in the inflammatory response. Research has shown that glycosylation of stilbenes can alter their biological activities: while the antioxidant capacity (ORAC value) of the glycoside may be lower than its aglycone, glycosylation improves tyrosinase inhibitory activity, making it valuable for skin-related applications . Additionally, related stilbene glycosides have demonstrated antiplatelet aggregation activity, suggesting potential cardiovascular benefits . The compound is typically available as a white powder with high purity (98% minimum) for research and commercial applications . Its multifunctional profile—combining antioxidant, anti-inflammatory, neuroprotective, and anti-aging properties—positions it as a valuable ingredient in dietary supplements and cosmetic formulations targeting longevity, cognitive health, and skin protection .