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.
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1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
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Details:
Appearance Reddish-brown crystalline powder
Identification Positive
Acidity PH 4.5-6.5
Related substances Rifampicin quinone ≤1.5%
One peak ≤1.0%
Sum of peaks ≤3.5%
Heavy metals ≤20ppm
Loss on drying ≤1.0%
Sulphated Ash ≤1.0%
Density ≥0.7g/cm3
Solubility Slightly soluble in water,soluble in methanol,
Sightly soluble in acetone,in alcohol and in ether,
Total quantity of bacterium ≤1000cfu/g
Total quantity of mouls and yeast ≤100cfu/g
Escherichia coli/g Not found in each 1g
Assay (dried basis) 97.0-102.0%