Bergenin , Analysis of standards,> 98% , 477-90-7

Synonym(s):
Ardisic acid B;Cuscutin;Vakerin

CAS NO.：477-90-7

Empirical Formula: C14H16O9

Molecular Weight: 328.27

MDL number: MFCD00133120

EINECS: 803-760-9

PRODUCT Properties

• Melting point: 237-240 °C(lit.)
• Boiling point: 386.03°C (rough estimate)
• alpha: D18 -37.7° (c = 1.96 in ethanol); D24 -45.3° (c = 0.51 for anhydr in water)
• Density: 1.3901 (rough estimate)
• refractive index: 1.6550 (estimate)
• storage temp.: -20°C
• solubility: DMSO (Slightly), Methanol (Slightly)
• pka: 8.26±0.70(Predicted)
• form: Solid
• color: White to Off-White
• λmax: 277nm(EtOH)(lit.)
• LogP: -1.398 (est)

Description and Uses

The plant resources of bergenin are rich, mainly from Rock cabbage (Bergenia purpurascens) and thick leafy rock cabbage (Astilbe macroflora) from Saxifragaceae and the roots, stems, and leaves of bai liang jin (Ardisia crispa) from Ardisia japonica (Thunb.) Blume. In Chinese medicine Rock cabbage (Bergenia purpurascens) is the common folk medicine, with nourishing, stanching bleeding, relieving a cough, and other effects. Its earliest record is contained in the classified herbal in Qing Dynasty .
There are ten kinds of Rock cabbage (Bergenia purpurascens) in Asia, mainly growing in East Asia, north of South Asia, and southeastern Central Asia. There are seven species (including three endemic species) in China, mainly distributed in Shaanxi (Qinling), Xinjiang, Sichuan, Yunnan, and Tibet .

A herbal remedy with antioxidant, antimicrobial and antiinflammatory properties.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P305+P351+P338
• Hazard Codes: Xi,Xn
• Risk Statements: 36/37/38-20/21/22
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: UQ0337200
• HS Code: 29329990