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Ethyl+3,6-dibromo-2-fluorobenzoate


124,169  results were found

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Supplier:  AMBEED, INC
Description:   (2S,4R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-phenylpyrrolidine-2-carboxylic acid 95%
Supplier:  AMBEED, INC
Description:   4-Aminopyrrolidin-2-one hydrochloride 97%
Supplier:  ALADDIN SCIENTIFIC
Description:   3-Aminobutan-2-one hydrochloride ≥95%
New Product
Supplier:  Matrix Scientific
Description:   4-Ethylpiperazin-2-one hydrochloride
Supplier:  AMBEED, INC
Description:   (S)-3-Aminobutan-2-one hydrochloride 95%
Supplier:  AMBEED, INC
Description:   Piperidin-3-one hydrochloride hydrate 97%
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
MSDS SDS
Supplier:  AMBEED, INC
Description:   3-Aminobutan-2-one hydrochloride, Purity: 95%, CAS Number: 21419-24-9, Appearance: Powder or crystals, Storage: Inert atmosphere, 2-8C, Size: 100MG
Catalog Number: (101823-780)

Supplier:  Matrix Scientific
Description:   Matrix Scientific Part Number: 027232-500MG , MDL Number: MFCD11506408
Supplier:  AMBEED, INC
Description:   1-Methylazepan-4-one hydrochloride, Purity: 98%, CAS number: 19869-42-2, Appearance: Solid, Storage: Inert atmosphere, 2-8C, Size: 25G
Supplier:  Matrix Scientific
Description:   1,4-Diazepan-5-one hydrochloride ≥97%
Catalog Number: (TCU0116-100MG)

Supplier:  TCI America
Description:   UltraNitroCat
New Product
Supplier:  Matrix Scientific
Description:   4-Ethyl-3-methylpiperazin-2-one hydrochloride
Supplier:  AMBEED, INC
Description:   (S)-3-Aminopiperidin-2-one hydrochloride, Purity: 97%, CAS Number: 42538-31-8, Appearance: Form: solid, Storage: Inert atmosphere, Room Temperature, Size: 250mg
Supplier:  AMBEED, INC
Description:   2-Propylpiperidin-4-one hydrochloride 97%
Supplier:  AMBEED, INC
Description:   (R)-5-Benzyl-2,2,3-trimethylimidazolidin-4-one hydrochloride 95%
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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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