Superiority:
Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals.
We could give you:
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
Details:
Description White crystalline powder
Clarity and Colour Clear and colourless
(10% W/V in methanol)
Specific rotation -60.0°~ -72.0°at25℃
(5.0%w/v solution in methanol)
on anhydrous basis
Water(KF) ≤1.00%
Melting point ≥169℃ 169.7~171.3℃
PH 2.50~3.50 (1.0%w/vsolution
In mixture of1:1methanol and water)
Heavy metals ≤0.002%
Assay ≥99.00%(as anhydrous basis)
Purity(HPLC) ≥99.00% 99.60%
Single impurity ≤ 1.0% (HPLC)