Sinoway Industrial Co.Ltd.
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Dipotassium Glycyrrhizinate
【CAS NO】68797-35-3
【Molecular Formula】C42H61K2O16
【Molecular Weight】899.13
【Appearance】White or almost white crystalline powder.
【Solubility】Practically insoluble in water, soluble in ethanol, sparingly soluble in methylene chloride.It shows polymorphism .
【preparation methods】
MAG as raw material, after the water extraction hydrogenated potassium oxide or potassium carbonate neutralization and completel
【Product character】The white fine powder, the special sweet taste, this is the water-soluble product, does not dissolve in the fat soluble resolver.
COA:
items
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specifications
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results
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appearance
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yellow crystalline powder
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complies
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ph value
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2.0 ~ 3.0
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2.4
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specific optical rotation
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-105°~-120°
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-110°
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specific absorbance
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at 349nm: 300 ~ 335
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317
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light absorbing impurities
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at 490nm ≤0.07
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0.03
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related substances
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6 – epidoxycycline ≤2.0%
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complies
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methacycline ≤2.0%
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complies
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disregard limit ≤0.1%
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complies
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any individual impurity ≤0.5%
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complies
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ethanol
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4.3% ~ 6.0%(m/m)
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4.8%
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heavy metals
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≤50ppm
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complies
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water
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1.4% ~ 2.8%
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2.0%
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sulphated ash
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≤0.4%
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0.08%
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assay
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95.0% ~ 102.0% of c22h25cin2o8
(anhydrous,ethanol-free substance)
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98.3%
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