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In the biopharmaceutical industry Urea is commonly utilized in denaturing and solubilizing proteins. As a chaotropic agent it is used to restructure proteins. In certain cases where proteins are denatured, Urea may also be useful in renaturing these proteins.
x 100g size
x 250g size BioBuffer Solutions offers three grades of this material in this size (Bio Ultra, Bio Synthesized, Bio Industrial). Our competitors have no comparable grades in this size. x 500g size
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NH2CONH2 ^ F.W. 60.06 g/mol ^ CAS# 57-13-6 |
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Test |
Specifications |
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Bio Ultra |
Bio Synthesized |
Bio Industrial |
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URE-13 |
URE-12 |
URE-11 |
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Manufactured in the |
Pass |
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Appearance and Color |
White/Crystals |
White/Crystals |
White/Prills |
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Alcohol Insoluble Matter |
0.005% max. |
0.005% max. |
0.04% max. |
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Assay |
99.5-100.5% |
99.5% min. |
99.0% min. |
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Identification (IR) |
Match Reference |
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Identification A |
Pass |
Pass |
Pass |
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Identification B |
Pass |
Pass |
Pass |
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Solubility |
Clear |
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Melting Range/C |
132-135 |
132-135 |
132-137 |
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Absorbance |
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0.01 max. @ 280 |
0.03 max. @ 280 |
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0.01 max. @ 260 |
0.05 max. @ 260 |
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Sodium (Na) |
0.005% max. |
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Potassium (K) |
0.005% max. |
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Arsenic (As) |
0.0001% max. |
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Calcium (Ca) |
0.0001% max. |
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Copper (Cu) |
0.0001% max. |
0.0001% max. |
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Iron (Fe) |
0.0001% max. |
0.0001% max. |
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Magnesium (Mg) |
0.0001% max. |
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Lead (Pb) |
0.0001% max. |
0.0001% max. |
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Heavy Metals |
0.001% max. |
0.002% max. |
0.002% max. |
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Conductivity |
<30mS/cm |
<40mS/cm |
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Chloride |
0.0005% max. |
0.007% max. |
0.007% max. |
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Sulfate |
0.010% max. |
0.010% max. |
0.010% max. |
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Residue On Ignition |
0.1% max. |
0.1% max. |
0.1% max. |
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Biuret |
0.1% max. |
0.1% max. |
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RNase |
None Detected |
None Detected |
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DNase |
None Detected |
None Detected |
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Protease |
None Detected |
None Detected |
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| Bio Industrial (Good) Quality tested from approved suppliers of BBS for Industry-Standard use. |
| Bio Synthesized (Better) Manufactured in a quality system based facility offering traceability and consistent supply. |
| Bio Ultra (Best) Manufactured at BBS to meet the highest quality and regulatory standards. |
