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Catalog No.: 52001
Cas No.: 49843-98-3
Purity : 98% Min.

Selisistat (6-chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide, SEN0014196, EX-527) is a selective SirT1 inhibitor that inhibits recombinant human SirT1 with an IC50 of 98 nm. It is more than 200-fold selective over SirT2 and SirT3 and has been shown to inhibit deacetylation of several SirT1 substrates both in vitro and in vivo. The compound exhibits cyto- and neuroprotective activity against toxicity induced by mutant HTT in cellular and in vivo models of HD increasing survival, amelioration of psychomotor behaviour and improvement in histopathological endpoints in the most widely employed animal models of HD. In a previous clinical study, selisistat was shown to be well tolerated at single doses up to 600 mg and repeated doses up to 300 mg day−1 for up to 7 days to healthy volunteers. The availability of selective, safe SirT1 inhibitors such as selisistat therefore makes the acetylation-dependent clearance of mutant HTT a clinically testable therapeutic approach.

For research use only. We do not sell to patients.

Chemical Information

Iupac Chemical Name6-Chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide
SynonymsEX-527; EX-527; EX-527; Selisistat
Molecular FormulaC13H13ClN2O
Molecular Weight248.71
CAS Number49843-98-3
Related CAS

Ordering Information

PackagingPriceAvailabilityPurityShipping Time
Request Bulk Quote Download MSDS Tel : +86-27-65522453   Email : sales@sun-shinechem.com
Formulationoff-white solid 
Purity98% Min.
StorageDry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
SolubilitySoluble in DMSO, not in water
Shipping ConditionShipped under ambient temperature 
HS Code
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Cell study
Animal study
Clinical study

[1]. Solomon JM, et al. Inhibition of SIRT1 catalytic activity increases p53 acetylation but does not alter cell survival following DNA damage. Mol Cell Biol. 2006 Jan;26(1):28-38.

[2]. Jia Y, et al. SIRT1 is a regulator in high glucose-induced inflammatory response in RAW264.7 cells. PLoS One. 2015 Mar 20;10(3):e0120849.

[3]. Wang X, et al. Resveratrol attenuates microvascular inflammation in sepsis via SIRT-1-Induced modulation of adhesion molecules in ob/ob mice. Obesity (Silver Spring). 2015 Jun;23(6):1209-17.

[4]. Napper AD, et al. Discovery of indoles as potent and selective inhibitors of the deacetylase SIRT1. J Med Chem. 2005 Dec 15;48(25):8045-54.

[5]. Huang J, Tian R, Yang Y, Jiang R, Dai J, Tang L, Zhang L. The SIRT1 inhibitor EX-527 suppresses mTOR activation and alleviates acute lung injury in mice with endotoxiemia. Innate Immun. 2017 Nov;23(8):678-686. doi: 10.1177/1753425917733531. Epub 2017 Sep 27. 

[6].Tao YF, Lin F, Yan XY, Gao XG, Teng F, Fu ZR, Wang ZX. Galectin-9 in Combination With EX-527 Prolongs the Survival of Cardiac Allografts in Mice After Cardiac Transplantation. Transplant Proc. 2015 Jul-Aug;47(6):2003-9. doi: 10.1016/j.transproceed.2015.04.091. 

[7].Ohata Y, Matsukawa S, Moriyama Y, Michiue T, Morimoto K, Sato Y, Kuroda H. Sirtuin inhibitor Ex-527 causes neural tube defects, ventral edema formations, and gastrointestinal malformations in Xenopus laevis embryos. Dev Growth Differ. 2014 Aug;56(6):460-8. doi: 10.1111/dgd.12145. Epub 2014 Aug 5. 

[8]. Gertz M, Fischer F, Nguyen GT, Lakshminarasimhan M, Schutkowski M, Weyand M, Steegborn C. Ex-527 inhibits Sirtuins by exploiting their unique NAD+-dependent deacetylation mechanism. Proc Natl Acad Sci U S A. 2013 Jul 23;110(30):E2772-81. doi: 10.1073/pnas.1303628110. Epub 2013 Jul 9. 

Chemical Structure

52001 - Selisistat | CAS 49843-98-3

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