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SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD
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Shenzhen PHYSTANDARD Biotechnology Co.Ltd. is a national high-tech enterprise based on chemical and pharmaceutical technology. The company focuses on providing pharmaceutical research workers with drug analysis standards and impurity reference materials. Relying on mature supply chain channel management and rich chemical synthesis experience, it has formed an industry and trade integrated sales system that represents well-known domestic and foreign drug impurity brands and independently develops and synthesizes drug impurity reference materials, Build a drug impurity supply platform with a large number of products, complete variety, reliable quality, and reasonable price. |
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Yonghua Chemical Co., Ltd.
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Urea
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Assay,%
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min 99.0
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Transparency of solution
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max 2
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Insoluble in water,%
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max 0.005
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Residue on ignition(as SO4),%
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max 0.01
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Chloride(Cl),%
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max 0.0003
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Sulfate(SO4),%
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max 0.001
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Ammonia(NH3),%
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max 0.005
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Iron(Fe),%
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max 0.0002
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Heavy metals(as Pb),%
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max 0.0002
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Biuret(C2H5N3O2),%
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max 0.2
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Packing: 500g 25kg
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Beijing KangPuHuiWei Technology Co.,Ltd.
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Chemical formula: CO (NH2) 2,
molecular weight 60.06
nitrogen content :46.67%.
density :1.335 g/cm3
Melting point:132.7 ℃
Properties:Soluble in water, ethanol and benzene, insoluble in ether and chloroform.White crystal, odorless, hygroscopic.Melting point 135 ℃ (decomposition), relative density d2041.323.In high temperature, the condensation reaction can be used to produce biurea, triurea and tripolycyanate.Heated to 160 ℃ decomposition, to produce ammonia at the same time into cyanate.
    
1.properties:White shape crystallization or white powder. Melting point 132.7 ℃ (breakdown). Soluble in water, alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane.
2.Usage:A.Widely used in ointment preparation.
B.Used in Medical diuretics---- for the treatment of cerebral edema which can reduce intracranial pressure , and for the treatment of
glaucoma which can reduce the intraocular pressure.
C.Used in the Inspection of antimony and tin, and determination of lead, copper, gallium, phosphorus.
D.Used as Lubricants.
3.Test Item
+86 18810111059
aomdavina@gmail.com
+86 15011031395
    
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Pharma Sources Insight June 2024: Globalization on the Go
