On medical field: as medicines raw material, it has supportive curing effect on rheumatoid artheitis, heart disease and pneumonia. It is used in antibibtic and other preparations additive. It is also one of the important elements for contaat lens and bifidobacteriums medium. It can be tableted and capsuled directly.

On health products field:it can adjust central nervous system and relieve allergic symptoms.

On industry: applied in heliograph,films,costuming and painting etc.

Quality standard :
Item
Standard (USP29)
Properties
white crystal And No Black spot,
Specific Optical Rotation
+50+52
PH (5% solution,20)
3.05.0
Iron ion
10PPM
Heavy Metals
10PPM
Loss on Drying
1.0%
Assay
98.0%-102.0% (as dry)
Residue on Ignition
27.029.0%
Chloride
11.112.3%
Sulfate
15.5%-16.5%
Organic volatile impurities :meets the requirements
Microbiological Test
Total plate count :MAX 500/g
Yeast&mold :MAX 100/g
Salmonella :negative
E.Coli :negative

Package and storage /
Preserve in tight,light-resistant containers
Expiry date :Two years