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Specification

Items	Specifications
Identification	HPLC RT of Main Peak The retention time corresponds to Reference Standard IR Absorption Exhibits maxima at the same wavelength to the Reference Standard
Appearance	White or off white powder
Solubility	Practically insoluble in water, freely soluble in DMSO, soluble in methanol, practically insoluble in methylene chloride
Assay (on anhydrous basis)	96.0%~101.0%
Water	≤12.0%
Sulfated ash	≤0.2%
Heavy Metal, ppm	≤10
Impurity B (Neodiosmin)	≤2.0%
Impurity D (Naringin Dihydrochalcone)	≤2.0%
Any other impurity	≤0.5%
Total of all impurities apart from impurity B	≤2.5%
Total Plate Count,cfu/g	≤1000
Yeast & Mold, cfu/g	≤100
Salmonella	Negative
E. Coli	Negative