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2,2\\\\\\\'-Bipyridine-5-carboxylic+acid
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2,2\\\\\\\'-Bipyridine-5-carboxylic+acid
Catalog Number:
(103011-162)
Supplier:
Anaspec Inc
Description:
Acrylodan is a thiol-reactive dye whose fluorescence is very sensitive to conformational changes, and is well-adapted to protein structural analyses.
Supplier:
AMBEED, INC
Description:
Erythromycin ethylsuccinate ≥765 IU/mg
Supplier:
AMBEED, INC
Description:
Roxithromycin ≥95%
Supplier:
TCI America
Description:
CAS Number: 927-62-8
MDL Number: MFCD00043838 Molecular Formula: C6H15N Molecular Weight: 101.19 Purity/Analysis Method: >98.0% (GC) Form: Clear Liquid Boiling point (°C): 93 Flash Point (°C): -5 Specific Gravity (20/20): 0.72
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:
(IC15829125)
Supplier:
MP Biomedicals
Description:
Victoria Blue B is used as a nuclear stain in cytology/histochemical applications. Victoria Blue B may be used in the quantitative determination of phospholipids.
Catalog Number:
(77666-794)
Supplier:
AMBEED, INC
Description:
Oxytetracycline dihydrate ≥97%
Supplier:
TCI America
Description:
O-(7-Azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium Hexafluorophosphate, Purity: >98.0%(HPLC), Cas number: 148893-10-1, Molecular Formula: C10H15F6N6OP, Molecular Weight: 380.24, Synonyms: HATU, Size: 25G
Supplier:
BeanTown Chemical
Description:
CAS: 598-94-7; EC No: 202-498-7; MDL No: MFCD00007959; RTECS: YS9867985
Crystalline; Linear Formula: (CH3)2NCONH2; Molecular Formula: C3H8N2O; MW: 88.11
Melting Point: 178-183°
Catalog Number:
(101116-592)
Supplier:
Advanced ChemTech
Description:
2-(1H-Benzotriazole-1-yl)-1133-tetramethyluroniumhexafluorophosphate. Size: 500Gram. CAS: 94790-37-1.
Supplier:
TCI America
Description:
CAS Number: 112-69-6
MDL Number: MFCD00015086 Molecular Formula: C18H39N Molecular Weight: 269.52 Purity/Analysis Method: >98.0% (T) Form: Clear Liquid Boiling point (°C): 148 Flash Point (°C): 147 Specific Gravity (20/20): 0.80
Catalog Number:
(TS45522-0010)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
Clarithromycin 97%
Catalog Number:
(89139-390)
Supplier:
Biotium
Description:
TMRE (Tetramethylrhodamine ethyl ester, perchlorate) and TMRM (70017) are preferred dyes for quantitative measurements of membrane potentials using the Nernst equation.
Supplier:
TCI America
Description:
CAS Number: 1120-24-7
MDL Number: MFCD00015060 Molecular Formula: C12H27N Molecular Weight: 185.36 Purity/Analysis Method: >95.0% (GC,T) Form: Clear Liquid Boiling point (°C): 235 Flash Point (°C): 92 Specific Gravity (20/20): 0.78
Supplier:
TCI America
Description:
CAS Number: 81103-11-9
MDL Number: MFCD00865140 Molecular Formula: C38H69NO13 Molecular Weight: 747.96 Purity/Analysis Method: >98.0% (T) Form: Crystal Melting point (°C): 225 Specific rotation [a]20/D: -92 deg (C=1, CHCl3)
Catalog Number:
(TCD1160-25ML)
Supplier:
TCI America
Description:
CAS Number: 2155-94-4
MDL Number: MFCD00038234 Molecular Formula: C5H11N Molecular Weight: 85.15 Purity/Analysis Method: >98.0% (GC,T) Form: Clear Liquid Boiling point (°C): 64 Flash Point (°C): -20 Specific Gravity (20/20): 0.72
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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
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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