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Iridium 99.9% (trace metals basis), powder

Supplier: Thermo Scientific Chemicals
Description: Iridium 99.9% (trace metals basis), powder

New Product

Product Image-IC821527

Urea ≥99%, white prills, Ultrapure

Supplier: MP Biomedicals
Description: Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.
Urea is a mild agent usually used in the solubilization and denaturation of proteins. It is also useful for renaturing proteins from samples already denatured with 6 M guanidine hydrochloride 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. 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; used as a diuretic; enhances the action of sulfonamides; an antiseptic.
Urea in solution is in equilibrium with ammonium cyanate. The form that reacts with protein amino groups is isocyanic acid. Urea in the presence of heat and protein leads to carbamylation of the proteins. Carbamylation by isocyanic acid interferes with protein characterization because isocyanic acid reacts with the amino terminus of proteins, preventing N-terminal sequencing. Isocyanic acid also reacts with side chains of lysine and arginine residues resulting in a protein that is unsuitable for many enzymatic digests. In addition, carbamylation often leads to confusing results from peptides having unexpected retention times and masses. When performing enzymatic protein digests it is important to remove urea first. Even though some enzymes will tolerate small amounts of urea, the elevated temperature used for most reactions will lead to carbamylation during the course of the digest. The urea can be removed prior to digestion by fast reversed phase chromatography, spin columns, or dialysis.
Dissolve urea in deionized water to the desired concentration.For every 10 ml of solution, add 1 g of Amberlite® IRA-910.Stir for one hour at room temperature

SDS Certificates

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Replacement Parts and Accessories for Biodiesel IR Fatty Acid Methyl Ester (FAME) Analyzers

Supplier: PerkinElmer
Description: Includes Mid-IR source element and source mount for Spectrum 100

Product Image-102099-616

Iridium, sputtering target sputter coater cathodes

Supplier: Electron Microscopy Sciences
Description: EMS (ELECTRON MICROSCOPY SCIENCES) precious metal sputtering targets are made from high purity metals, starting 99.99% with most standard disc sizes, for use on most sputtering units from many manufacturers: Emitech, Emscope, Bio-Rad, Polaron, Edwards, Balzers, Plasma Sciences, Technics Hummers, Denton, Cressington, and much more.

Image Unavailable-BT137470-2G

(Pentamethylcyclopentadienyl)iridium(III) dichloride dimer

Supplier: BeanTown Chemical
Description: CAS: 12354-84-6; MDL No: MFCD00075435 Solid; Molecular Formula: C20H30Cl4Ir2; MW: 796.67

SDS

Product Image-100496-366

Evaporated Platinum/Iridium on Holey Carbon Film, Electron Microscopy Sciences

Catalog Number: (100496-366)
Supplier: Electron Microscopy Sciences
Description: Evaporated Pt/Ir on Holey carbon film.

Minority or Woman-Owned Business Enterprise


Image Unavailable-89138-530

Anti-IgG Goat Polyclonal Antibody (CF™ 750)

Catalog Number: (89138-530)
Supplier: Biotium
Description: with the near-IR fluorescent dye CF750 which is superior to Alexa Fluor 750,IRDye and the DyLight near-IR dye.Our near-IR CF dyes have advantages in brightness,photostability, specificity and novel features ideal for NIR applications.
Product Image-89177-044

CentriVap® micro IR Vacuum Concentrator, Labconco

Catalog Number: (89177-044)
Supplier: Labconco
Description: With the smallest footprint available, the new CentriVap® micro IR Vacuum Concentrator fits in tight spaces and is ideal for small throughput in molecular biology, proteomics, genomics, genetics, cell biology and drug discovery labs

Product available on GSA Advantage®


Product Image-10232-760

Anti-IRS3 Rabbit Polyclonal Antibody

Catalog Number: (10232-760)
Supplier: Bioss
Description: The family of insulin receptor substrates (IRSs) has been reported to play important roles for signal transduction of various hormones. Four members of the IRS family have been described. Each IRS is believed to have different functions; however, the distinct physiological roles of each IRS are unclear. IRS-1 may mediate the control of various cellular processes by insulin. When phosphorylated by the insulin receptor binds specifically to various cellular proteins containing SH2 domains such as phosphatidylinositol 3-kinase p85 subunit or GRB2.
Product Image-89177-048

CentriVap® micro IR Vacuum Concentrator 230 V

Supplier: Labconco
Description: With the smallest footprint available, the new CentriVap® micro IR Vacuum Concentrator fits in tight spaces and is ideal for small throughput in molecular biology, proteomics, genomics, genetics, cell biology and drug discovery labs

Irregular Voltage Product available on GSA Advantage®

Product Image-102099-886

Iridium, annular sputtering target, Diameter 57×40 mm (OD×ID)

Catalog Number: (102099-886)
Supplier: Electron Microscopy Sciences
Description: Metal sputtering targets are made from high purity metals, starting 99.99% with most standard disc sizes, for use on most sputtering units from many manufacturers: Emitech, Emscope, Bio-Rad, Polaron, Edwards, Balzers, Plasma Sciences, Technics Hummers, Denton, Cressington, and much more.
Image Unavailable-89276-662

Anti-IRS1 Rabbit Polyclonal Antibody

Catalog Number: (89276-662)
Supplier: Genetex
Description: Rabbit polyclonal antibody to IRS-1 (phospho S612)
Product Image-76335-060

Accessories for IR 29 i Series Fixed Transmitters, Intrinsically Safe, Fixed Systems Gas Detection

Supplier: GFG INSTRUMENTATION, INC.
Description: Double safety barrier (Type: SB1), two channel, for IR 29 integrated in a wall mounting case (IP65)

Product Image-10147-340

Fluorescent Wash Buffer, Azure Biosystems

Catalog Number: (10147-340)
Supplier: Azure Biosystems
Description: Azure IR Fluorescent Blot Washing Buffer is optimized for use with visible and infrared fluorescent Western blotting.

SDS Product available on GSA Advantage®


Image Unavailable-101324-822

1,5-Cyclooctadiene(η5-indenyl)iridium(I) ≥99%

Supplier: Strem Chemicals Inc
Description: 1,5-Cyclooctadiene(η5-indenyl)iridium(I) ≥99%

Image Unavailable-103329-688

Anti-INSRR Mouse Monoclonal Antibody [clone: 5C6]

Catalog Number: (103329-688)
Supplier: Novus Biologicals
Description: The INSRR / IR-related receptor Antibody (5C6) from Novus Biologicals is a mouse monoclonal antibody to INSRR / IR-related receptor. This antibody reacts with human, rat. The INSRR / IR-related receptor Antibody (5C6) has been validated for the following applications: Western Blot, ELISA.
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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.
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.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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