234902 Results for: "Amberlyst® 15 H\u207A form"

Supplier: Apollo Scientific

5-(Difluoromethyl)-[1,2,4]triazolo[1,5-a]pyridine

Supplier: Apollo Scientific

1,5-Dimethyl-3-(trifluoromethyl)-1H-pyrazole

Supplier: MP Biomedicals

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: Apollo Scientific

8-Iodo-6-(trifluoromethyl)imidazo[1,5-a]pyrimidine 95%

Supplier: Apollo Scientific

2-Bromo-[1,2,4]triazolo[1,5-a]pyridine 95%

Supplier: Apollo Scientific

Pyrazolo[1,5-a]pyridine-3-carboxylic acid 95%

Supplier: Apollo Scientific

Ethyl pyrazolo[1,5-a]pyridine-3-carboxylate 95%

Supplier: Apollo Scientific

2-Bromo-1,5-dimethyl-1H-imidazole 97%

Supplier: Apollo Scientific

6-Chloro-[1,2,4]triazolo[1,5-a]pyridine 95%

Supplier: Apollo Scientific

7-[4-(3-Fluoropropoxy)phenyl]-2-methylpyrazolo[1,5-a]pyrimidine, tech

Supplier: Apollo Scientific

7-Amino-2-methylpyrazolo[1,5-a]pyrimidine-6-carbonitrile 95%

Supplier: Serva

β-Nicotinamide adenine dinucleotid, oxidised form (NAD, oxidised form)

Supplier: Thermo Fisher Scientific

1,5-Cyclooctadienebis(methyldiphenylphosphine)iridium(I) hexafluorophosphate

Supplier: Apollo Scientific

1,5-Dichloro-2-[(3-fluorophenyl)methoxy]-4-nitrobenzene

Supplier: Apollo Scientific

6-Bromo[1,2,4]triazolo[1,5-a]pyridine 99%

Supplier: Apollo Scientific

4-Bromo-1,5-dimethyl-1H-pyrazole 95%

Supplier: Apollo Scientific

[1,2,4]Triazolo[1,5-a]pyridin-8-amine 95%

Supplier: Apollo Scientific

Pyrazolo[1,5-a]pyrimidine-5-carboxylic acid 95%

Supplier: Apollo Scientific

5-Chloro-7-(trifluoromethyl)imidazo[1,5-a]pyridine ≥98%

Supplier: Apollo Scientific

2,3,6,7-Tetramethylpyrazolo[1,5-a]pyrimidin-5-amine 95%

Supplier: Apollo Scientific

6-Bromoimidazo[1,5-a]pyridine-1-carboxylic acid ≥98%

Supplier: Apollo Scientific

3,4-Dihydro-2H-1,5-benzodioxepin 97%

Supplier: Thermo Fisher Scientific

Chloro(1,5-cyclooctadiene)iridium(I) dimer (57,2% Ir)

Supplier: Thermo Fisher Scientific

Chloro(1,5-cyclooctadiene)rhodium(I) dimer (>40.8% Rh)

Supplier: Thermo Fisher Scientific

Platinum iridium alloy (85:15 w%), wire, hard, Ø 0.5 mm (0.02 in)

Supplier: Apollo Scientific

1,5-Dimethyl-1H-pyrazol-3-ylamine

Supplier: Apollo Scientific

Bis(1,5-cyclooctadiene)iridium(I) tetrafluoroborate

Supplier: Apollo Scientific

3-Methyl[1,2,3]triazolo[1,5-a]pyridine

Supplier: Apollo Scientific

6-(Difluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

Supplier: Apollo Scientific

7-Bromo[1,2,4]triazolo[1,5-a]pyridine