We are professional manufacturer on Genistein products. We have been engaged in Genistein products for over 3 years and have sold tons of Genistein products. We assay our Genistein by HPLC using Sigma Genistein 98% as our reference substance. At the same time we also product GUANYU (TM) Genistein.
Following are the specification of Genistein：
Product Name:Genistein
Botanical Name:Sophora japonica L.
Identification( By IR) :Consistent with structure
Appearance:White or off-white crystalline powder
Odor:Characteristic
Assay(Genistein, HPLC):≥99.0%
Melting Point:301―303℃
Solubility :Solubility in ethanol, DMSO
Loss on Drying:≤2.0%
Sieve Analysis:100% pass 80 mesh
Pesticides:Negative
Sulphated Ash:≤1.0%
Heavy Metal:<10ppm
As:<2ppm
Total Plate Count:<500/g
Yeast & Mold:<100/g
E.Coil:Negative
Salmonella:Negative
Storage ：Store in cool & dry place. Do not freeze.Keep away from strong light and heat.
Shelf life ：2 years when properly stored
If the above products be of interest to you, please don? hesitate to contact us for details.
Contacter： Mr. Cao
GUANYU BIO-TECHNOLOGY CO., LTD
Add : 1002 Lvyuan Building, Weiguo road, Chang?n District ,Xi?n China
Tel.：0086-29-88907599
Cell phone:13319221360
Fax ：0086-29-85658727
Pc： 710100
E-mail ：yewes@hotmail.com