Icariin and Icariins from Epimedium extract

shhww3

Banned
Awards
0
Hello, recently we received many business partners feedback. In
international market, there are different Epimedium extracts. My
business partners are confused by their quality and price. Now, we
will introduce them clearely below.


Both of them declared they are Epimedium extract. However, there are
different in their COAs. One showed assay Icariin(HPLC), Another
showed Icariins(HPLC). The difference between them is "S" behaind
icariin. It really is a little difference. Someone will ignore it.
However, it caused big difference in quality and price.


Epimedium extract has a long history in chines traddtional medicine.
Chinese medicine experts researched it for many years and established
strictly quality standard. It was documented in chinese pharmacopoeia.
We will attached in our forum files. Members can download it freely.
This analysis method is stable and is used by chinese SFDA. It also is
a purchase standard accpeted by chinese epimeidum extract fomula GMP
factory.


Then, when Icariins came forth? When epimedium extract just entered
USA market, No one knew who set up a analysis method to identified
icariin. Maybe a researcher in a USA lab or a teacher in a university.
However, their method isn't precise. it can't separate icariin from
its impurity. Later, they found it is a mistake. Finally, they named
their result is Icariins, sometime they said it double icariin and
named correct single icariin.


Then, we will asked them, since you decleared "double", could you
showed us, what is their chmecal structure and CAS No.? What is their
molecular weight? what is your reference standards? One or two? As we
know, they only use Icariin as HPLC standard reference, then, how to
get the concentration result of double?


We did lots of works about epimedium extract. We compared two kinds of
analysis method. We found, Analysis method of Icariins can't separate
icariin. The peak of icariins were composed by 2-3 chemical substance.
One is icariin, another can't be identified.


Then, conclusion is clearly, Icariins analysis result is higher than
Icariin. The cost of Icariins is lower than Icariin. Lower price
abstract attension of market. However, please be careful in
specification.


I C A R I I N or I C A R I I N S
 
dtrain13

dtrain13

Well-known member
Awards
1
  • Established
To those reading this Icariin is what you want. No "s".
 

shhww3

Banned
Awards
0
To those reading this Icariin is what you want. No "s".
Glad to know you use icarrin as raw materials not icariins.
We are chinese manufacturer. So, we know it and supply good quality icariin.
 

Similar threads


Top