Urea
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- Category :
Intermediates/Pharmaceutical intermediates
- CAS NO : 57-13-6
- EC NO : 200-315-5
- Molecular Formula : CH4N2O
- Main Specifications : Purity 99.9% usp grade JP grade BP grade
- Synonyms : Carbamide;Urea solution;Urea, USP Grade Carbamide, USP Grade;Urea, MB Grade (1.12007);Urea (Medical);Urea-12C;10-Hydroxy-2-trans-Decenoic Acid;Carbonyl diamine;Sulfur coated urea;
Package: 1000kg or 25kg pp bags
Uses : pharmaceutical intermediates
Molecular Structure:
Product description:
Product Urea Quantity 25KG
Manufacturing Date 2009.11.12 Report Date 2009.11.12
Expiry Date 2011.11.12 Batch No: 091112
Standard Usp28 Packing KG/Bag
Appearance Colorless prism-shaped crystalline or powder no smell, salty taste, Have long time placed Ammonia
Identification A: Hcat about 500mgi in a test tube itllquefies and ammonia is evolved. Continue the heating until the liquid becomes turbid then cool. Dissolve the mass in a mixture of 10ml of water and 1ml of sodium hydroxide solution and I drop of cupric sulfate The solution acquires a reddish-violet color
B: Dissolve 100mg in 1ml of water and add 1ml of nitric acid a white crystalline precipitate of urea nitrate is formed
Test Items Limit Result
Residue on ignition ≤0.1% 0.018%
Melting range 132C-135C Conform
Alcohol-insoluble matter ≤0.04% 0.013%
Chloride ≤0.007% 0.0004%
Sulfate ≤0.010% 0.001%
Heavy metals ≤0.002% 0.001%
Assay 99.0%-100.5% 99.38%
Conclusion the about product complies with Usp28
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