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Supplier: TCI America
Description: CAS Number: 26444-49-5 MDL Number: MFCD00014920 Molecular Formula: C19H17O4P Purity/Analysis Method: <gt/>93.0% (GC) Form: Clear Liquid Boiling point (°C): 390 Flash Point (°C): 232 Freezing point (°C): -38 Specific Gravity (20/20): 1.21

SDS

Supplier: MP Biomedicals
Description: Applications:
Urea is used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies and in the extraction of the mitochondrial complex. It is commonly used to solubilize and denature proteins for denaturing isoelectric focusing and two-dimensional electrophoresis and in acetic acid-urea PAGE gels. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form. Urea is used in cell or tissue culture media to increase the osmolality. Urea has also been used as fertilizer because of the easy availability of nitrogen; in animal feeds; it is reacted with aldehydes to make resins and plastics; condensed with malonic ester to form barbituric acid; used in the paper industry to soften cellulose.
Biochem/physiol Actions:
Urea has been shown to act as an aldosterone antagonist in the development of peanut agglutinin binding in cultured embryonic renal collecting duct epithelial cells. Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.
Typical Working Concentration:
The use of 2 g/L urea in the culture of Kluyveromyces marxianus to produce a thermostable extracellular lipase has been described. Urea is typically used at a concentration of 8 M for protein denaturation or solubilization. A final concentration of 5 M urea is commonly used in molecular biology for sequencing gels. To prevent carbamylation, do not heat urea containing buffers above 37 °C

Supplier: TCI America
Description: [Reagent for Ion-Pair Chromatography]
CAS Number: 5574-97-0
MDL Number: MFCD00064526
Molecular Formula: C16H37NO
Form: Clear Liquid
Color: Colorless
Supplier: VWR International
Description: Application specifc columns developed for pesticides, herbicides, insecticides analysis and so on.

Supplier: VWR International
Description: Application specifc columns developed for pesticides, herbicides, insecticides analysis and so on.

Supplier: VWR International
Description: Application specifc columns developed for complex solvents mixtures analysis. HI-SOLVE 2 is ideal for aromatics and oxygenates in gasoline.

Catalog Number: (76429-096)
Supplier: VWR International
Description: Application specifc columns developed for complex solvents mixtures analysis. HI-SOLVE 1 is ideal for aromatics and oxygenates in gasoline.


Catalog Number: (76595-168)
Supplier: VWR International
Description: Calibrated timer developed with busy clinics and clinical labs in mind.


Supplier: DWK Life Sciences (KIMBLE)
Description: TLC Developing Tank Only

Catalog Number: (470182-552)
Supplier: VWR
Description: Illustrates Early Fish Development


Catalog Number: (21432-740)
Supplier: General Glass Blowing
Description: Developing chamber is extremely useful for TLC


Supplier: General Glass Blowing
Description: The TLC Developing Chamber is a sturdy, molded, clear-glass block.

Supplier: VWR International
Description: VWR® Laboratory Notebooks offer a wide array of applications, such as admissibility as court evidence, data on laboratory work, experiment details, and design and development.

Product available on GSA Advantage®

Supplier: VWR International
Description: Application specifc column for polycyclic aromatics hydrocarbons.

Supplier: VWR
Description: Fetal pig tissue showing early tooth development.

Supplier: VWR International
Description: Application specific column for blood alcohols testing.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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The original product is no longer available. The replacement shown is available.
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