O-Glucuronides are a class of compounds derived from the glucuronidation reaction, a common phase II metabolic pathway in the liver where xenobiotics and certain endogenous substances undergo conjugation with glucuronic acid. These molecules play critical roles in detoxification processes by facilitating the excretion of various drugs, hormones, and toxins. In pharmaceutical research, O-glucuronides are often studied for their implications in drug metabolism and pharmacokinetics. They can be found in natural sources such as plants and serve as essential components in certain biochemical pathways within organisms. Additionally, they have been investigated for potential therapeutic applications due to their biological activities, including anti-inflammatory and antioxidant properties.