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1 Kilogram |
FOB Price:USD 82.0000 -105.0000 |
Praziquantel 55268-74-1 C19H24N2O2
Items |
Standard |
Result |
Appearance |
A white or almost white crystalline powder |
White powder |
Identification |
The infrared absorbance spectrum is concordant with the reference spectrum |
Conform |
Assay |
98.5%-101.0% |
99.3% |
Melting point |
136.0℃-142.0℃ |
138℃-140℃ |
Loss on dried |
0.5% max |
0.1% |
Residue on ignition |
0.1% max |
0.04% |
Heavy metal |
20ppm max |
20ppm max |
Phosphate |
0.05% max |
0.05% max |
Residual solvents |
Chloroform: 60ppm max Acetone: 5000ppm max |
N.D 291ppm |
Related compounds |
A: 0.2% max B: 0.2% max C: 0.2% max |
0.02% 0.1% 0.01% |
Conclusion |
The batch products complies with standard of USP37. |
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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Product Detils
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Appearance A white or almost white crystalline powder
Identification The infrared absorbance spectrum is concordant with the reference spectrum
Acidity It should be yellow
Melting point 136.0℃-142.0℃
Loss on dried 0.5% max
Residue on ignition 0.1% max
Heavy metal 20ppm max
Phosphate 0.05% max
Residual solvents Chloroform: 60ppm max
Acetone: 5000ppm max
Assay 98.5%-101.0%
Company Profile
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Our company is located in hangzhou xiasha economic development zone,Zhejiang.It is a professional engaged in pharmaceutical raw materials Pharmaceutical intermediates, fine chemical,biochemical reagents and other high-tech product development.sales , import and export into a modern private enterprises Company.
We owm a number of senior medical research and engineer,and HPLC analysis testing instrument has been equipped. It Lays the foundation for the research and development of our New product. Every year we will launch new produces which with high-tech content and have the international market competitiveness.
Oue company has passed has passed the ISO9001:2008 . The high-quality products of our company is sell well in more than 60 countries such as North America Western Europe ,southeast Asia , central and South America. Now we have established long-term stable relations of cooperation with the pharmaceutical enterprises of Europe, America ,Greece ,Germany ,Iran, Russia, South Korea, India.And we Gain customer trust and reputation with our rigorous attitude and sincere service.
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