hot sale skullcap powder

US $41.5

Min. Order:1 kg
Keywords:skullcap extract , plant extract , natural extract
Origin:Made In China
Brand:wujiashen

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Member Information

Company NameYichun Green Pharmaceutical Group Co.,Ltd.
Country/Region:Hei Long jiang - China
Business Nature:Manufacturer
Contact:Jewel FanSales
Phone:04647136
Last Online:31 Oct, 2017
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Product Description

Product Name

Baicalin

Formula

C21H18O11

Color

Light yellow odorless powder

Solubility

Slightly soluble in methanol, and practically insoluble in water and in
diethyl ether.

 Melting point

about 2069C (with decomposition)

Source

Scutellaria baicalensis

Using Part

Peeled and dried root

Extraction solvent

Water/Ethanol

Assay

80-95%

Test  basis

Japanese Pharmacopoeia

Test method

HPLC

Column 

CAPCELL PAK C18 MGII S5; 4.6mm i.d. x 150 mm

CAPCELL PAK C18 MG S5; 4.6mm i.d. x 150 mm

CAPCELL PAK C8 DD S5; 4.6mm i.d. x 150 mm

Mobile phase

0.685 vol% H3PO4/CH3CN=72/28

Flow rate 

0.7mL/min

Temperature

50C

Detection

UV277 nm

Inj.vol.

10μL

Pretreatment

Scutellaria root was ground in a mortar with a pestle. 0.5 g of the ground scutellaria was dispersed in 30 mL of the mobile phase. The dispersion was refluxed on a water bath for 30 min. After cooling it down, the dispersion was filtered with filter paper. The residue was rinsed with the mobile phase. The filtered liquid and the mobile phase used for rinsing were added together and adjusted to 50 mL in a volumetric flask. A small amount of the solution was further filtered with a 0.2-µm filter, diluted 5-fold with the mobile phase, and introduced to HPLC.

Heavy metals

NMT 10 ppm

Payment Terms:TT/LC/DP/DA

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