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 A White Crystalline powder
Assay,on dry base 98.5%-101.5%
Solubility Soluble in methanol,insoluble in chloroform
Melting point range 148.0 -156.0 ℃
Indentification
A:Infrared Absorption
B:The retention time of the major peak in HPLC
C:The test for Oxalate A:The assay should accord with regulation
B:The assay should accord with regulation
C:It should meets the for Oxalate
Loss on drying Not more than 1.0%
Heavy metal Not more than 10ppm
Residue on ignition Not more than 0.1%
Specific Rotation +10.0~+14.0(in 0.05g/ml Methanol)
R-isomer 1.0% max
PH(in 0.01g/ml water) 2.0~4.0
Residual Sovents Terahydrofuram not more than 0.072%
Toluene not more than 0.089%
Any impurity peak
Total impurities Any impurity peak: 0.1%max
Total impurities: 0.5% max
TLC Purity No secondary spot