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![Sirtuin 1/SIRT1 Assay Kit (Fluorometric) [KA1366] - Inhibition of SIRT1 by Sirtinol (IC50= 38 uM).](http://images.novusbio.com/fullsize/Sirtuin-1-SIRT1-Assay-Kit-Fluorometric-KA1366-img0001.jpg "Sirtuin 1/SIRT1 Assay Kit (Fluorometric) [KA1366] - Inhibition of SIRT1 by Sirtinol (IC50= 38 uM).")
![Sirtuin 2/SIRT2 Assay Kit (Fluorometric) [KA1368] - Inhibition of SIRT2 by Nicotinamide (IC50= 250 uM).](http://images.novusbio.com/fullsize/Sirtuin-2-SIRT2-Assay-Kit-Fluorometric-KA1368-img0001.jpg "Sirtuin 2/SIRT2 Assay Kit (Fluorometric) [KA1368] - Inhibition of SIRT2 by Nicotinamide (IC50= 250 uM).")