Naringin（10236-47-2）

Dihydroflavonoids: Naringin is a kind of dihydroflavonoids. Because there is no conjugation between ring A and ring B, there is a strong ultraviolet absorption peak at 282 nm, which makes naringin show a variety of biological activities and pharmacological effects. naringin can significantly improve local microcirculation and nutrition supply, effectively resist dark circles under the eyes, and fully show bright eyes. In addition, studies have shown that naringin has inhibitory effects on the proliferation and migration of melanocytes, so as to counteract the pigmented black eye caused by pigmentation of pigmentation. The naringin extracted and purified is a white to light yellow crystalline powder with extremely bitter taste. After hydrolysis and hydrogenation, the naringin dihydrochalcone, which is 150 times sweeter than sucrose, is obtained. The solubility of naringin in normal temperature water is only 0.1%, and can be increased to 10% at 75 ℃. It is easily soluble in methanol, ethanol, acetone, hot acetic acid, dilute alkali solution, formamide, and insoluble in non-polar solvents such as petroleum ether, benzene, ether and chloroform.