Sie haben gesucht nach: Harnstoff
Harnstoff ≥99,5%, Puriss. p.a. ACS, Reag. Ph. Eur., Fluka™
Supplier: Honeywell Chemicals
Harnstoff ≥99,5%, Puriss. p.a. ACS, Reag. Ph. Eur., Fluka™
Expand 3 Items
Harnstoff
Supplier: Spectrum Chemical
Urea, USP, JP is used in topical dermatological products to promote rehydration of the skin. Urea preparations are also used for non-surgical removal of damaged or dead nails. All Spectrum Chemical USP, JP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.
Expand 2 Items
Harnstoff 99,0-100,5%, erfüllt analytische Spezifikationen von BP, Ph. Eur., USP, Fluka™
Supplier: Honeywell Chemicals
Harnstoff 99,0-100,5%, erfüllt analytische Spezifikationen von BP, Ph. Eur., USP, Fluka™
Expand 1 Items
Harnstoff, weiße Granalien, Reagenzqualität
Supplier: MP Biomedicals
Urea is a prinicipal protein metabolite end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle and the major product for the removal of free ammonia (NH4+) in vivo.
Expand 2 Items
Harnstoff 99+% für die Biochemie
Supplier: Thermo Fisher Scientific
Harnstoff 99+% für die Biochemie
Expand 2 Items
Harnstoff ≥99%, weiße Granalien, ultrarein
Supplier: MP Biomedicals
Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.
Expand 5 Items
Harnstoff ≥99%, weißes Pulver, ultrarein
Supplier: MP Biomedicals
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.
Expand 2 Items
Harnstoff ≥99%, weißes kristallines Pulver
Supplier: MP Biomedicals
Urea is a mild agent usually used in the solubilization and denaturation of proteins.
Expand 3 Items
Harnstoff ≥98%, weißes Pulver für die Molekularbiologie
Supplier: MP Biomedicals
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
Expand 2 Items
Harnstoff, kristallisiert, EMPROVE® EXPERT Ph. Eur., BP, JP, USP, ACS für die biopharmazeutische Produktion, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Harnstoff, EMPROVE® EXPERT Ph. Eur., BP für die biopharmazeutische Produktion, SAFC®
Expand 4 Items
Harnstoff, kristallisiert, EMPROVE® api Ph. Eur., BP, USP geeignet zur Verwendung als pharmazeutischer Wirkstoff, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Harnstoff, EMPROVE® api BP, Ph. Eur., USP geeignet zur Verwendung als pharmazeutischer Wirkstoff, SAFC®
Expand 2 Items
Harnstoff 98,0-102,0% (durch HPLC), kristallin, EMPROVE® ESSENTIAL Ph. Eur., BP, USP, JP, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Harnstoff 98,0-102,0% (durch HPLC), kristallin, EMPROVE® ESSENTIAL Ph. Eur., BP, USP, JP, SAFC®
Expand 2 Items
Urea ≥99,0% FCC
Supplier: Spectrum Chemical
Urea, FCC is a component of animal feed, providing a relatively cheap source of nitrogen to promote growth. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage, nutritional supplements and personal care applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.