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:
Appearance White or almost white crystalline powder
Clarity Clear
Specific optical rotation +23? ~+29?
Water content 5.0% max
PH(250mg/ml in water) 4.5-7.0
Total Ash 0.1%max
PH 1.0--3.0
Calcium <500ppm
Chloride <500ppm
Sulfate <500ppm
Iron <100ppm
Reducing metals <0.2%
Heavy metals <10ppm
Assay 98.0%--102.0%
Total bacteria count <100Col/g
Endotoxin level 10EU/g
Salmonella Negative
E.Coli Negative
Pseudomonas aeruginosa Negative