Quercetin/Meletin；Sophoretin；3,3′,4′,5,7-Pentahydroxyflavone/Quercetinic acid

English Name: Quercetin; Meletin； Sophoretin； 3,3′,4′,5,7-Pentahydroxyflavone； Quercetinic acid； 2-(3,4-Dihydroxy- phenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one； Cyanidenolon 1522

Other names: Quercetin; Quercetin; Acorn essence; Quercetin; Quercetin; Azadirachtin; 3,5,7,3 ', 4' - pentahydroxyflavone dihydrate; 3,5,7,3 ', 4' - pentahydroxy yellow pigment; 3,3 ', 4', 5,7-pentahydroxy-2-phenyl-1-oxa-4-naphthone; 3,5,7,3 ', 4' - pentahydroxy-2-phenylbenzo-4-pyranone; 3,3', 4', 5,7-pentahydroxyflavone dihydrate

CAS No.: 6151-25-3

C15H10O7·2H2O=338.27

Grade: br

Content: ≥ 97.0%

Moisture: ≤ 1.0%

Burning residue: ≤ 0.1%

 Physicochemical properties: Yellow acicular crystal or crystalline powder. When heated to 95 ~ 97 ℃, it becomes anhydrous. Decomposition at 312 ~ 314 ℃. 1g is soluble in 290ml absolute ethanol, 23ml boiling ethanol, glacial acetic acid, and alkaline solution, which is yellow and almost insoluble in water. Alcohol solution tastes bitter. Maximum absorption wavelength (in ethanol) 258, 275nm (log exergy ε 2.75、2.75)。 Toxic, LD50 (mouse, oral) 160mg/kg.

Purpose: biochemical research. Organic sensitive reagent, fluorescence determination of aluminum, photometric determination of iron, tin and zirconium. Inhibitor of mitochondrial adenosine triphosphatase. Mixed with epichlorohydrin (3-chloro-1,2-propylene oxide) to form epoxy resin

Save: RT, away from light