English Name:Calycosin-7-O-beta-D-glucoside

Alias:Calycosin-7-O-β-D-glucoside; Calycosin 7-glucoside, 4-hydroxy-3-methoxyisoflavone-7-sug, 3'-hydroxy-4'-methoxy isoflavone 7-sug

Plant source:The dry root of Astragalus membranaceus (Fisch. )Bge.(Main origin of Gansu) or Astragalus membranaceus (Fisch. ) Bge. var. mongholicus ( Bge. ) Hsiao(Main origin of Inner Mongolia)

Appearance: Brown yellow powder

Molecular Formula: C22H22O10

Molecular Weight: 446.408

CAS No.:20633-67-4

Assay Test method: UV

Other Inspection item:

TLC	Show the same characteristic spots with Astragalus herbs
Loss on drying	≤ 5.00%
Ash	≤ 5.00%
Mesh Size	100% pass 80 mesh
Arsenic(MDL0.05)	≤ 2ppm
Lead(MDL0.02)	≤ 2ppm
Cadmium(MDL0.02)	≤ 1ppm
Mercury(MDL0.005)	≤ 0.1ppm
Total BHC	≤ 0.9ppm
Total DDT	≤ 1.0ppm
Total PCNB	≤ 1.0ppm
Total plate count	≤ 1000cfu/g
Mould&Yeast	≤ 100cfu/g
E.Coli	Negative
Salmonella	Negative

The Characteristic of Chengdu King-tiger Calycosin-7-O-beta-D-glucoside:

1:100% natural extract of astragalus:Calycosin-7-O-beta-D-glucoside,in addition to contain calycosin-7-O-beta-D-glucoside,the other ingredients are all natural ingredients of astragalus, such as astragalus polysaccharides,astragalus saponins,and other astragalus flavone as calycosin, ononin,formononetin etc.. 
2:All specifications can be provided from stock in large quantity at any time.