Urea - GMP Denaturant

BIO PHARMA GRADE | UR4220 | CAS# 57-13-6

INTENDED OR USE AS AN EXCIPIENT

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Urea is used in biochemistry and molecular biology as a protein denaturant with low UV absorptivity. In addition to increasing solubility of hydrophobic molecules, unfolding proteins and altering their three-dimensional structures, Urea also renatures protein structures. Some proteins will be irreversibly altered after interaction with Urea solutions and may lose their binding function. Applications include solubilizing proteins from inclusion bodies, increasing solubility of hydrophobic peptides and proteins and denaturing proteins. Urea may be used with guanidine hydrochloride in the refolding of denatured proteins into their native or active form. Urea also denatures nucleic acid structures for use in electrophoresis.


These are general specifications. BioSpectra will customize our products to meet your quality based requirements.

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BIO PHARMA GRADE / UR4220

CAS #: 51-13-6

Molecular Formula:

CH4N2O

Solubility in Water (g/L): 545

F.W.: 60.06 g/mol

pH @ 20°C: 7.5 - 9.5

ANALYSIS SPECIFICATIONS
Alcohol Insoluble Matter 0.04% max.
Appearance and Color White / Crystals
Assay 98.0 - 102.0%
  DNase
Enzymes Protease
  RNase
None Detected
None Detected
None Detected
 Heavy Metals 10 ppm max. 
Identification A Passes Test
Identification B Passes Test
Identification (IR) Passes Test
Insoluble Matter

0.010% max.

Loss on Drying

1.0% max.

Melting Range 132 - 135 ˚C
Residue on Ignition 0.010% max.
Sulfate 0.001% maximum
   Arsenic(As)
Trace Metals  Copper(Cu)
   Iron(Fe)
   Lead(Pb)
5 ppm maximum
5 ppm maximum
5 ppm maximum
5 ppm maximum
Printable Version
Key Compliance Attributes of
BioSpectra Grades
Bio Pharma
Grade IPEC
GMP
Compliant
Manufactured
Suitable for Research and Diagnostic  
Yes
Each Batch 100% Analyzed  
Yes
Management of Change  
Yes
Validated Analytical Methods  
Yes
Compendial Testing  
Yes
Trace Metals Analyzed  
Yes
Two Year Stability  
Yes
BioSpectra Supply Chain Audit Trail  
Yes
Product Origin Statement  
Yes
Customer Quality Audits  
Yes
Customized Additional Specifications  
Yes
Multi-Compendial Testing  
Yes
Enzyme Tested  
Yes
Validated Manufacturing Process  
Yes
US Manufactured at BioSpectra  
Yes
IPEC cGMP Compliant Manufactured  
Yes
Suitable for use as Excipient  
Available
Microbial / Endotoxin Tested  
Available
Manufactured in FDA Registered Facility  
Available
Customized Manufacturing Schedule  
Available
Custom Regulatory Packet  
Available
Accelerated Stability  
Available
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General Product Description:

  • The manufacturing of Bio Pharma Grade Urea UR4220 is performed at BioSpectra’s Stroudsburg, PA facility and is conducted in a dedicated processing area using only dedicated equipment.
  • Urea is a White Crystalline product.
  • Molecular Formula: CH4N2O
  • Molecular Weight: 60.06 g/mol.
  • CAS Number: 57-13-6.
  • There are no known major food allergens (as defined by FDA and WHO) in the manufacture of this product.
  • BioSpectra certifies that all Urea UR4220 manufactured at BioSpectra and its raw materials are not derived from or come in contact with animal parts, products, and/or byproducts.
  • Urea manufactured at BioSpectra and any raw materials used in the manufacture of Urea at BioSpectra are not subject to genetic modification.
  • Synonyms: Carbaminde, Carbonyldiamide.

GMP Compliance:

Bio Pharma Grade Urea UR4220 is manufactured in accordance with cGMP guidelines and is suitable to be used only as the following: IPEC Compliant GMP Manufactured Chemical, for use in further Manufacturing or as a Reagent for Laboratory and Research. This Grade of Urea is not suitable to be used as an Active Pharmaceutical Ingredient, Drug, Drug Product or household item.

Expiration/Retest Date:

The recommended retest period for Urea is two years from the
date of manufacture.

Storage and Shipping Conditions:

  • Ship and Store between 15˚ and 30˚C.
  • Store in clean and dry area.
  • Store in the original container.

Package Sizes:

10kg, 25kg and 50kg pails.