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By certification 
CAS No.：616-91-1
Molecule Formula：C5H9NO3S
Molecule Weight：163.20
Structure Formula：
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Description：White crystals or crystalline powder; strongly acid taste. Freely soluble in water.
　　　　　　Soluble in ethanol, practically insoluble in ether.
　　　　　　Solubility(H2O, g/100g):17(20°),80(40°),260(60°)
Manufacture Standards:AJI92,USP26,EP5
Specification:
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Specific rotation |
+21.3-+27.0° |
Heavy metals |
≤10ppm |
Loss on drying                      |
≤0.50% |
assay |
98.5-101.0% |
Melting point |
106-110°C |
pH |
2.0-2.8 |
Mainly uses:
Cure bronchitis.
Used in the cure of liver disease, antioxidant and antidote.
Packing:
25kgs/ fiber drum