- Contact Person : Mr. Jacky
- Company Name : Hangzhou Greensky Biological Tech Co., Ltd.
- Tel : 0086-571-85303241
- Fax : 0086-571-85395770
- Address : Zhejiang,HANGZHOU,EAST 506, MODERN ZHIYE BUILDING, HANGZHOU, ZHEJIANG, CHINA
- Country/Region : China
- Zip : 310004
VB2
VB2
Product Name: | VB2,Riboflavin | Manufactory Date: | 2008-10-15 |
Batch No: | GS2008101011 | Expiry Date: | 20010-10-14 |
Quantities: | 60G | Package: | Paper drum |
Test Standard: | USP30/BP2007 | Report Date: | 2008-10-16 |
Item | Spcification USP30 | Result | Specificate BP2007 | Result |
Appearance | A yellow or orange yellow crystalline powder | Conform | A yellow or orange yeloow crystalline powder | Conform |
Identification | Conform | Conform | Conform | Conform |
Assay(on dried basis%) | 98.0~102.0 | 99.5 | 97.0~103.0 | 99.5 |
Specific Rotation(°) | -115~-135 | -125 | -115~-135 | -125 |
Loss on drying (%) | 1.5 max | 0.6 | 1.5 max | 0.6 |
Residue on ignition(%) | 0.3 max | 0.07 | 0.1 max | 0.07 |
Lumiflavine | 440 nm Absorbance 0.025 max | 0.006 | Not more intensely ccolored than reference solution By. | Conform |
Organic volatile impurities (mg/kg) | Conform | Conform | / | / |
PH | / | / | Conform | Conform |
Absorbance | / | / | A373nm/A267nm=0.31:0.33 A444nm/A267nm=0.36:0.30 | Conform |
If you have any query on the price of rhe VB2,pls feel free to let me know.
Ellen Lian
ellen AT greenskybio DOT net
VB2