Icariin（489-32-7）

Icariin (CAS: 489-32-7), with molecular formula C₃₃H₄₀O₁₅ and molecular weight of 676.66, is a natural flavonoid active monomer purified from Epimedium plants. It is the most representative and highest active ingredient of Epimedium. Widely distributed in medicinal Epimedium species, it combines traditional Chinese herbal application with modern purification technology and becomes a high-value flavonoid raw material. Compared with ordinary plant flavonoids, Icariin has stable molecular structure, excellent absorption performance and definite pharmacological effects. With natural origin and high safety, it is widely used in biomedicine, health products, cosmetics and scientific research, occupying an important position in the natural plant extract industry.

In terms of physical and chemical properties, Icariin appears as pale yellow crystalline powder with slight bitter taste and stable physicochemical properties. It is easily soluble in organic solvents such as methanol and ethanol, and slightly soluble in water, suitable for alcohol-soluble industrial formulas. It has good temperature and acid-base resistance, and is not easy to deteriorate under sealed storage. Nevertheless, it is sensitive to strong light; long-term illumination will darken the color, and humid environment may cause moisture agglomeration. It shall be stored in sealed, light-proof, cool and dry environment away from strong oxidants to maintain stable purity and biological activity.

In industrial production, Icariin is extracted from high-quality Epimedium stems and leaves through low-temperature alcohol extraction and multi-stage purification. The production procedures include raw material screening, drying, crushing, alcohol leaching, vacuum concentration, macroporous resin impurity removal, decolorization, HPLC separation, recrystallization and vacuum drying. Adopting pure physical extraction technology without harmful residues, the process completely retains natural flavonoid activity. Impurities and miscellaneous flavonoids are removed through multi-stage separation. Industrial refined Icariin can reach a purity of more than 98%, featuring uniform color and low impurities, meeting high-standard requirements for medicine, health products and scientific research.

Icariin has diverse and outstanding biological activities, mainly including bone care, anti-oxidation, anti-inflammation and immune regulation. For bone health, it regulates bone cell metabolism, promotes bone formation and inhibits bone loss to improve bone density. It can efficiently scavenge free radicals and reduce oxidative damage to delay cell aging. Its anti-inflammatory property inhibits the release of inflammatory factors and relieves chronic inflammation. In addition, it activates immune cells to improve sub-health condition. With mild action and high human tolerance, it has no obvious toxic and side effects.

Icariin is widely applied in multiple high-end industries. In the pharmaceutical field, it serves as a key flavonoid intermediate for orthopedic and immune-regulating drugs. In health products, it is made into dietary supplements for bone maintenance and physical conditioning. In cosmetics, it is added into anti-aging skincare products to improve skin dullness and slow metabolism. In scientific research, it is commonly used as a standard reference substance for flavonoid detection and pharmacological experiments.

With the popularization of natural health concepts, the plant extract industry maintains steady development. Benefiting from natural herbal source, definite efficacy and strong compatibility, Icariin has achieved continuous expansion in market scale. In the future, with optimized extraction technology and reduced production cost, its application scope in medical and civil health fields will be further broadened. With stable quality, mature production process and diverse biological activities, Icariin will continue to develop in biomedicine, health care and cosmetics, becoming a benchmark product with great market potential among natural flavonoid extracts.