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3,4-Bis(1-methylethoxy)benzoic+acid
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3,4-Bis(1-methylethoxy)benzoic+acid
Supplier:
MP Biomedicals
Description:
Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors. β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain. Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M. Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.
Supplier:
AMBEED, INC
Description:
(+)-1,2-Bis[(2S,5S)-2,5-diethylphospholano]benzene(cyclooctadiene)rhodium(I) trifluoromethanesulfonate ≥98%
Supplier:
AMBEED, INC
Description:
(R)-(+)-2,2'-Bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthyl 98%
Supplier:
TLC PHARMACEUTICAL STANDARD LTD
Description:
Pharmaceutical Standards, Abiraterone Acetate N-Oxide
Supplier:
TLC PHARMACEUTICAL STANDARD LTD
Description:
Pharmaceutical Standards, Lansoprazole Sulfone N-Oxide
Catalog Number:
(77159-068)
Supplier:
AMBEED, INC
Description:
2,5-Bis(2-octyldodecyl)-3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione, Purity: 95%, CAS Number: 1267540-02-2, Appearance: Solid, Storage: Keep in dark place, Sealed in dry, Room Temperature, Size: 100mg
Supplier:
TCI America
Description:
Dimethyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Isophthalate, Purity: >98.0%(GC)(T), Cas no: 944392-68-1, MW: 320.15, Synonyms: 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isophthalic Acid Dimethyl Ester, Size: 1G
Supplier:
AMBEED, INC
Description:
Iridium-(1,10-phenanthroline-KN1,KN10)bis[(3-fluoro-5-trifluoromethyl)-2-(5-trifluoromethyl-2-pyridinyl-KN)phenyl-KC]-hexafluorophosphate, Purity: 95%, CAS Number: 2828437-79-0, Appearance: Powder to crystal, Storage: Keep in dark place, Inert atmosphere, Room temperature, Size: 250MG
Supplier:
TCI America
Description:
CAS Number: 2579-20-6
MDL Number: MFCD00001522 Molecular Formula: C8H18N2 Molecular Weight: 142.25 Purity/Analysis Method: >98.0% (GC,T) Form: Clear Liquid Flash Point (°C): 113 Specific Gravity (20/20): 0.94
Catalog Number:
(77748-738)
Supplier:
AMBEED, INC
Description:
(R)-3-(8-Chloro-3-(2,2,2-trifluoro-1-(pyrido[3,2-d]pyrimidin-4-ylamino)ethyl)quinolin-2-yl)pyridine 1-oxide 98+%
Supplier:
AMBEED, INC
Description:
(7,9-Bis(2,6-diisopropylphenyl)-7,9-dihydro-8H-acenaphtho[1,2-d]imidazol-8-ylidene)gold(III) chloride, Purity: 98%, CAS Number: 1246183-59-4, Appearance: Solid, Storage: Keep in dark place, Inert atmosphere, 2-8C, Size: 250MG
Supplier:
AMBEED, INC
Description:
(1E,6E)-1,7-Bis(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione 98%
Supplier:
AMBEED, INC
Description:
2,5-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thieno[3,2-b]thiophene 97%
Supplier:
AMBEED, INC
Description:
Pentane-1,5-diyl bis(3-(1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)propanoate) dioxalate 97%
Catalog Number:
(77620-824)
Supplier:
AMBEED, INC
Description:
2,6-Bis(3-hydroxyphenyl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone ≥98%
Supplier:
Invitrogen
Description:
The NHS-Azide and NHS-Phosphine Reagents are amine-reactive compounds for derivatising primary amines of proteins or amine-coated polymer surfaces. Once a protein or surface is azide- or phosphine-labelled, the two components are mixed for effective and stable conjugation. Phosphine groups react with azides via a Staudinger reaction to produce an aza-ylide intermediate that is trapped to form a stable, covalent amide bond. Because phosphines and azides are absent from biological systems, there is minimal background labelling of macromolecules found in cells or lysates.
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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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