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MilliporeSigma™ Calbiochem™ Nicotinamide Phosphoribosyltransferase Inhibitor, FK866

The Nicotinamide Phosphoribosyltransferase Inhibitor, FK866, also referenced under CAS 658084-64-1, controls the biological activity of Nicotinamide Phosphoribosyltransferase. This small molecule/inhibitor is primarily used for Neuroscience applications.

Manufacturer:  MilliporeSigma™ 4819082MG

Catalog No. 48-190-82MG

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A cell-permeable pyridinylacrylamide compound that acts as a selective, allosteric NAPRT/NAMPT (nicotinamide phosphoribosyltransferase) inhibitor (Ki = 0.4nM for the enzyme/substrate complex; Ki ft. = 0.3nM for the free enzyme), while exhibiting no effect toward NPRT (nicotinic acid phosphoribosyltransferase) activity (82% inhibition of NAPRT activity at 10nM vs no inhibition of NPRT activity at 1µM in K-562 extract). FK866 treatment is shown to induce cell death by depleting NAD+ (Cat. Nos. 481911 and 481915) in HepG2 and NIH-3T3 cultures (by >95% after 24 h treatment of 10nM FK866), likewise the addition of exogenous NAD+ is demonstrated to rescue NIH-3T3 and SH-SY5Y from FK866-induced NAD+-depletion and cell death.


Supplied as a 50 mM (2mg/102.17μl) solution in DMSO.
Yellow liquid
97% by HPLC
Protect from Light
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