Add: Linxiang Industrial Park, Hunan Province, China
Tel: 86-730-8355226
Fax: 86-730-8355226
Mob: 86-15607306299
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English Name: Urea
Chemical Name: Carbamide
Formula Weight: 60.06
Pharmacological Action：It can dissolve protein, increase protein hydration, improve the skin penetrability,
and has the function of anti-bacteria, anti-itch and dehydration.
Application: It is extensively used
in ointments and injections, and indicated for treatment of ichthyosis,
rhagades manus et pedes, palmoplantar keratoderma, pityriasis rubra pilaris,
eczema rhagadiforme, senile pruritus and hemangiomas.
The Main Quality Specification of Medicinal Urea
|
Test items |
The quality of
product |
|
| Appearance |
Colourless prismatic crystal or white
crystalline powder, almost odourless, salty and
cold. A small quantity of ammonia will be given off after it is stored for a
long time. The aqueous solution of the product is neutral. |
|
| Melting Point |
132-135℃ |
|
| Identification |
Identification 1 |
positive reaction |
| Identification 2 |
positive reaction |
|
| IR Spectrum |
The IR spectrum of sample is consistent with the standard
substance（No. 210 in Spectrogram Collection） |
|
| Chloride |
NMT0.0003% |
|
| Sulphate |
NMT0.001% |
|
| Insoluble Substances
in Ethanol |
NMT2mg |
|
| Residue on Ignition |
NMT 0.1% |
|
| Heavy Metal |
NMT20ppm |
|
| Biruet |
NMT0.1% |
|
| Ferrum |
NMT0.001% |
|
| Free Ammonia |
NMT0.005% |
|
| Content of urea |
not less than 99.7% |
|
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