Esta buscando: Nicotine+ditartrate+dihydrate

Proveedor: MP Biomedicals

Descripción: 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.

Numero del catalogo: (GSK5294-1G)

Proveedor: Merck

Descripción: NICOTINE DITARTRATE (NICOTINE BITARTRATE 1 * 1 g

UOM: 1 * 1 g

Promoción

Numero del catalogo: (PHR2532-500MG)

Proveedor: Merck

Descripción: NICOTINE BITARTRATE DIHYDRATE 1 * 500 mg

UOM: 1 * 500 mg

Promoción

Numero del catalogo: (GSK6347-100MG)

Proveedor: Merck

Descripción: NICOTINE BASE 1 * 100 mg

UOM: 1 * 100 mg

Promoción

Numero del catalogo: (GSK5301-100MG)

Proveedor: Merck

Descripción: (1',2'S)-NICOTINE-1'-N-OXIDE 1 * 100 mg

UOM: 1 * 100 mg

Promoción

Numero del catalogo: (36733-250MG)

Proveedor: Merck

Descripción: [EN](-)-NICOTINE 1 * 250 mg

UOM: 1 * 250 mg

Promoción

Numero del catalogo: (GSK06347-100MG)

Proveedor: Merck

Descripción: NICOTINE BASE 1 * 100 mg

UOM: 1 * 100 mg

Promoción

Numero del catalogo: (PHR3063-50MG)

Proveedor: Merck

Descripción: [EN]NICOTINE RELATED COMPOUND F 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR3062-50MG)

Proveedor: Merck

Descripción: [EN]NICOTINE RELATED COMPOUND D 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR2533-50MG)

Proveedor: Merck

Descripción: NICOTINE RELATED COMPOUND C 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR3061-50MG)

Proveedor: Merck

Descripción: [EN]NICOTINE RELATED COMPOUND B 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR3064-50MG)

Proveedor: Merck

Descripción: [EN]NICOTINE RELATED COMPOUND G 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR3060-50MG)

Proveedor: Merck

Descripción: [EN]NICOTINE RELATED COMPOUND A/EP IMPUR 1 * 50 mg

UOM: 1 * 50 mg

Promoción

Numero del catalogo: (PHR3303-200MG)

Proveedor: Merck

Descripción: [EN]DIATRIZOIC ACID DIHYDRATE 1 * 200 mg

UOM: 1 * 200 mg

Promoción

Numero del catalogo: (PHR3435-400MG)

Proveedor: Merck

Descripción: [EN]GLYCYL-L-TYROSINE DIHYDRATE 1 * 400 mg

UOM: 1 * 400 mg

Promoción

Numero del catalogo: (1.02413.1000)

Proveedor: Merck

Descripción: L-Tyrosine disodium salt dihydrate for cell culture media (not for dietary use) 1 * 1 kg

UOM: 1 * 1 kg

Promoción