Items	Specifacations
Appearance	White crystalline powder
Assay	98.0% - 102.0%
Specific Optical Rotation [ α ] D	+50.0 - +52.0
PH	3.0 - 5.0
Loss on drying	≤ 1.0%
Residue on ignition	27.0% - 29.0%
Sulfate	15.5% - 16.5%
Arsenic	≤ 3ug/g
Heavy Metals	≤ 0.001%
Total microbial count	≤ 1000cfu/g
Yeast and Moid	≤ 100cfu/g
Salmonella	Negative
E.coli	Negative

Properties: White crystal, flavorless, sweet, free soluble in water, slightly soluble in methanol, insoluble in organic solvents such as ethanol etc..

Use: Pharmaceutical materials, having therapeutic action on rheumatoid arthritis, heart disease, pneumonia and fracture. In recent years, it is found that it can adsorb free radical, fight against senium, lose weight and adjust internal secretion etc..