Baicalin

Baicalin
Basic information

English alias: BAICALIN; Baicaloside; 5,6-Dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl β-D-Glucopyranosiduronic Acid; baicalein 7-O-glucuronide; Baicalein 7-O-β-D-glucuronide;
CASNo.: 21967-41-9
Molecular formula: C21H18O11
Molecular weight: 446.36100
Structural formula:
Accurate mass: 446.08500
PSA：187.12000
LogP：0.14220 [1]
Physical and chemical properties
Density: 1.737 g/cm3
Melting point: 231-233 C (lit.)
Boiling point: 836.6ºCat 760 mmHg
Flash point: 297.2ºC
Refractive index: 1.739
Vapor pressure: 1.07e-29mmhgat 25 C.
Yellow needle-like crystals. It is stable under dilute acid conditions, for example, it will not be hydrolyzed in 2% sulfuric acid aqueous solution, but when the acid concentration increases and the temperature rises to 110℃, it can be hydrolyzed to generate glucuronic acid and baicalein (baicalein).
Ultraviolet absorption spectrum: 280,316