Description General description A cell-permeable 2-hydroxy-1-naphthaldehyde derivative that acts as a specific and direct inhibitor of the sirtuin class of deacetylase activity with no affect on human HDAC1 (IC50 = 48 µM, 131 µM and 58 µM for ySir2, hSIRT1 and hSIRT2, respectively). Reported to inhibit Sir2p transcriptional silencing activity in vivo (IC50 = 25 µM), and NAD-dependent histone deacetylase activity of purified recombinant yeast Sir2p and human SIRT2 in vitro (IC50 = 70 µM and 40 µM, respectively). A 10 mM (1 mg/254 µl) solution of Sirtinol (Cat. No. 566321) in DMSO is also available. A cell-permeable 2-hydroxy-1-napthaldehyde derivative that acts as a specific and a direct inhibitor of sirtuin class of histone deacetylase (HDAC) activity. Does not affect human HDAC1. Reported to block Sir2p transcriptional silencing activity in vivo (IC50 = 25 µM) and NAD-dependent HDAC activity in purified recombinant yeast Sir2p and human SIRT2 in vitro (IC50 = 68 µM and 38 µM, respectively). Packaging 5 mg in Plastic ampoule Biochem/physiol Actions Cell permeable: yes Primary Target Human HDAC1 Product does not compete with ATP. Reversible: no Target IC50: 48 µM, 131 µM and 58 µM for ySir2, hSIRT1 and hSIRT2 Packaging Packaged under inert gas Warning Toxicity: Standard Handling (A) Reconstitution Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C. Other Notes Mai, A., et al. 2005. J. Med. Chem.48, 7789. Grozinger, C.M., et al. 2001. J. Biol. Chem.276, 38837.