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Supplier: Ambeed
Description: Ethyl carbamimidate hydrochloride 97%

Supplier: Matrix Scientific
Description: Ethyl carbamimidate hydrochloride ≥95%

Supplier: Ambeed
Description: Chloroformamidine hydrochloride 97%

Catalog Number: (101780-788)
Supplier: Matrix Scientific
Description: MDL Number: MFCD00035527

SDS


Supplier: TCI America
Description: Chloroformamidine Hydrochloride, CAS Number: 29671-92-9, Purity: 98.0% Pure, Molecular Formula: CH3ClN2.HCl, Molecular Weight: 114.96 g/mol, Physical Form: Solid, Size: 25G

SDS

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

Catalog Number: (77666-564)
Supplier: Ambeed
Description: Methyl carbamimidate sulfate ≥97%

New Product


Supplier: Ambeed
Description: 1-(3-(tert-Butyl)-1-(p-tolyl)-1H-pyrazol-5-yl)-3-(5-fluoro-2-((1-(2-hydroxyethyl)-1H-indazol-5-yl)oxy)benzyl)urea, Purity: 98+%, CAS Number: 945614-12-0, Appearance: White to off-white solid, Storage: Sealed in dry, 2-8 C, Size: 5mg

Supplier: Thermo Scientific Chemicals
Description: Ethyl 2-amidinoacetate hydrochloride, Purity: 95%, Cas Number: 57508-48-2, Molecular formula: C5H10N2O2.HCl, Color: White, Form: Powder, Synonym: Ethyl 3-amino-3-iminopropionate hydrochloride, 3-Amino-3-iminopropionic acid ethyl ester hydrochlorid, 25G
Supplier: APOLLO SCIENTIFIC
Description: Ethyl acetimidate hydrochloride 95%

New Product

Supplier: Thermo Scientific Chemicals
Description: D-Valine ethyl ester hydrochloride, 97%
Supplier: Matrix Scientific
Description: L-Alanine ethyl ester hydrochloride ≥97%

Supplier: Thermo Scientific Chemicals
Description: 98%. 50g.
Supplier: Matrix Scientific
Description: MF=C7H16CLNO2 MW=181.66 CAS=29840-57-1 MDL=MFCD12546205 5G

Supplier: Thermo Scientific Chemicals
Description: L-Phenylalanine ethyl ester hydrochloride 99%

Supplier: Ambeed
Description: Ethyl L-methionate hydrochloride, Purity: 98%, CAS Number: 2899-36-7, Appearance: Solid, Storage: Inert atmosphere, Room Temperature, Size: 25g

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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.
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
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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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