Factory Supply 153-18-4 Rutin 98% Powder

Rutin is classified as a flavonol; specifically, it is the rutinoside of quercetin and constitutes a bioactive flavonoid component widely distributed in natural plants. Its distribution is extensive, commonly found in rue, tartary buckwheat, *Sophora japonica* flower buds, catalpa leaves, and tomatoes, as well as in medicinal-edible plants such as Chinese jujube, hawthorn, ginkgo, goji berry, aloe, and *Gynostemma pentaphyllum*. Dried buckwheat harvested near the flowering stage typically contains approximately 3% rutin, whereas the flower buds of the leguminous *Sophora japonica* tree—known as *Huaimi*—can contain over 20%; consequently, these buds serve as the primary raw material for the industrial extraction of rutin within China.

Rutin possesses distinct physicochemical properties; it is prone to hydrolysis under conditions of strong acidity or alkalinity and exhibits poor color stability within alkaline systems. This compound demonstrates excellent antioxidant characteristics, capable of enhancing pigment light stability and retarding the degradation of flavor compounds; furthermore, when combined with Vitamin E, its antioxidant efficacy is significantly amplified.

Moreover, rutin can be subjected to hydrolysis using dilute sulfuric acid, followed by purification, to yield high-purity quercetin. When quercetin is utilized in combination with other flavonoid compounds—such as α-tocopherol and catechins—it further exhibits synergistic physiological activities.

Rutin is a natural bioactive flavonoid with multiple functional properties, including vascular protection, antioxidant activity and photoprotective efficacy.

1. Vascular protection
Rutin facilitates capillary blood circulation throughout the body, improves insulin sensitivity, and reduces vascular fragility and permeability. It helps maintain normal vascular physiological functions and serves as a beneficial nutritional ingredient for auxiliary prevention of hypertension and related cardiovascular discomforts.

2. Antioxidant activity
It can potentiate the biological activity of vitamin C and exert powerful antioxidant capacity, which effectively neutralize free radicals and reduce oxidative damage to cells. Furthermore, rutin helps alleviate hot flashes and other typical physical discomforts in menopausal women, delivering gentle endocrine regulation effects.

3. Natural sunscreen performance
Rutin features strong absorption capacity against ultraviolet rays and X-rays. As a safe natural photoprotective component, it is widely incorporated into modern sunscreen formulations. It provides mild and effective external sun protection, making it a popular skincare ingredient for daily ultraviolet defense.