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Kaempferol

 
Product Name Kaempferol
Latin Name Kaempferol
Molecular Formula C15H10O6
Molecular Weight 286.23
CAS NO 520-18-3
Appearance Yellow powder
Product Content ≥98%  
Analytical Method HPLC
   
Product Origin

Kaempferia galanga L.

   
Action and Uses kaempferol, Anti-inflammation, Anti-bacteria, Restrain cough Antioxidant, Anti-spasmodic or Spasmolytic, AntiulcerCholeretic, Diuretic, Relieve coughing .The vacuoles of lower epidermal strips from Vicia faba exhibit an intrinsic green fluorescence when incubated in alkaline buffers. Using an alkaline-induced absorbance change as a spectrophotometric assay, the major pigment responsible for this fluorescence was isolated and identified as the flavonoid: kaempferol 3-O-galactoside, 7-O-rhamnoside. The aqueous absorption maxima were 394 and 341 nanometers at pH 10.0 and 6.0, respectively, with a pKa of 8.3 and the fluorescence emission maximum was 494 nanometers at pH 10.0. The in vivo concentration was estimated to be between 3 and 10 micromolar. The absorption spectrum of this flavonoid is different from the action spectrum for stomatal opening indicating that this compound is not the photoreceptor pigment for the blue light response of Vicia faba guard cells
Analysis
  Product content Kaempferol≥98%
Sieve analysis 100% pass 80 mesh
Loss on Drying ≤1.0%
Residue on Ignition ≤1.0%
Heavy Metal <20ppm
As <2ppm
Residual Solvents Eur.Pharm.2000
Microbiology  
Total Plate Count <1000cfu/g
Yeast & Mold <100cfu/g
E.Coli Negative
Salmonella Negative
     
Conclusion Conform with specification
   
Storage Store in sealed containers at cool & dry place. Protect from light, moisture and pest infestation
   
Shelf life 2 year when properly stored
 
 
 
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