Rhubarb Extract

Rhubarb  Extract---
Latin  NameRheum  palmatum  L  
CAS  No.008016-55-5
Appearanceyellow  fine  powder  
Test  MethodHPLC
SourceIn  the  branch,  bark,  leaf  of  the  apple  tree
Extract  MethodAlcohol/water
Applicable  fieldMedical  trade
AssayEmodin  10%20%50%80%90%95%98%    30:1    10:1  
Heavy  Meta10ppm  
As0.5ppm  
Pb1ppm  
Hg0.05ppm  ,
Cd0.2ppm,
Ni0.5ppm
Total  Plate  Count1000cfu/g  
Yeast  &  Mold100cfu/g  
Loss  on  Drying2%
E.ColiNegative  
Pesticides  Negative
SalmonellaNegative
Active  materialEmodin
Molecular  FormulaC15H10O5
Molecular  Weight270.23
Melting  point321~2°C
SolubilityInsoluble  in  water    Dissolve  in  alkali  and  pyridine,  slightly  dissolve  in  ethanol,  benzene,  chloroform,  ether  and  petroleum  ether.
Packing25kg  cardboard  barrel
Particle  size80  mesh
Shelf  Life24  months  

Sales Terms & Specifications:

Place Of OriginChina
Price TermsFOB / CIF / EXW(Factory Price)
Terms Of PaymentT/T, Western Union, PayPal, L/C at sight
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