Fisetin (3, 7, 3′, 4′-tetrahydroxyflavone) is a flavonol, a structurally distinct chemical substance that belongs to the flavonoid group of polyphenols. It can be found in many plants, where it serves as a colouring agent. It is also found in many fruits and vegetables, such as strawberries, apples, persimmons, onions and cucumbers. Its chemical formula was first described by Austrian chemist Josef Herzig in 1891.

CAS：528-48-3
中文别名：漆树黄酮;非瑟酮;3,3\',4\',7-四羟基黄酮;
英文别名：Fisetin;Viset;4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-;3,3\',4\',7-tetrahydroxyflavone;Fustet;5-deoxyquercetin;Superfustel;Fustel;5-Desoxyquercetin;Cotinin;3,7,3\',4\'-tetrahydroxyflavone;2-(3,4-Dihydroxyphenyl)-3,7-dihydroxy-4H-chromen-4-one;2-(3,4-dihydroxyphenyl)-3,7-dihydroxychromen-4-one;Fietin;2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-4H-chromen-4-one;Fisetholz;3,7,3\',4\'-Tetrahydroxyflavone;
分子式：C15H10O6
分子量：286.236
精确质量：286.048
Psa：111.13
Logp：2.2824

MDL号：MFCD00006829

外观与性状：黄色至棕色结晶粉末
密度：1.688g/cm3
沸点：599.4ºC at 760mmHg
熔点：330ºC
闪点：233ºC
折射率：1.784
稳定性：Stable under normal temperatures and pressures.
储存条件：-20ºC

安全说明：S24/25
危险类别码：R36/37/38
海关编码：2914501900

用途
用于生化研究。染料。