HDAC-IN-26 is a highly selective class I HDAC inhibitor with an EC50 value of 4.7 nM.

CXD101(AZD-9468) is a novel histone deacetylase (HDAC) inhibitor with potential antineoplastic activity.

HDAC inhibitor IV is a cell-permeable pimeloylanilide compound that acts as a FXN- (frataxin gene) specific HDAC (histone deacetylase) inhibitor.

ITSA-1 (ITSA1) is an HDAC activator via TSA suppression, but shows no activity towards other HDAC inhibitors.

QTX125 TFA is a potent and highly selective HDAC6 inhibitor. QTX125 TFA exhibits excellent selectivity over other HDACs. QTX125 has antitumor effects.

HDAC/BET-IN-1 displays submicromolar inhibitory activity against HDAC1 and 6 (IC50 = 0.163 μM and 0.067 μM), and BRD4 (Ki = 0.076 μM), and possess potent antileukemia activity.

Dihydrochlamydocin is a Putative HDAC inhibitor.

HDAC1/2-IN-3 is a HDAC1 and HDAC2 inhibitor with IC50 values 0-5 and 5-10 nM, respectively.

Ivaltinostat (CG-200745) formic is a potent HDAC inhibitor which has the hydroxamic acid moiety to bind zinc at the bottom of catalytic pocket. Ivaltinostat formic inhibits deacetylation of histone H3 and tubulin. Ivaltinostat formic induces the accumulation of p53, promotes p53-dependent transactivation, and enhances the expression of MDM2 and p21 (Waf1/Cip1) proteins. Ivaltinostat formic induces apoptosis.

KA2507 hydrochloride is a potent and highly selective inhibitor of HDAC6 (IC50=2.5 nM) with no significant toxicities. KA2507 hydrochloride shows antitumor efficacy and immune modulatory effects.

Pomiferin (NSC 5113) acts as an potential inhibitor of HDAC, with an IC50 of 1.05 μM, and also potently inhibits mTOR (IC50, 6.2 µM).

FNDR-20123 is an orally active, safe and a first-in-class anti-malarial HDAC inhibitor with IC50s of 31 nM and 3 nM for Plasmodium and human HDAC, respectively. FNDR-20123 exerts anti-malarial activity against Plasmodium falciparum asexual stage (IC50=41 nM) and sexual blood stage (IC50=190 nM for male gametocytes). FNDR-20123 inhibits HDAC1/2/3/6/8 (IC50=25/29/2/11/282 nM) and inhibits Class III HDAC isoforms at nanomolar concentrations.

FNDR-20123 free base is an orally active, safe and a first-in-class anti-malarial HDAC inhibitor with IC50s of 31 nM and 3 nM for Plasmodium and human HDAC, respectively. FNDR-20123 free base exerts anti-malarial activity against Plasmodium falciparum asexual stage (IC50=41 nM) and sexual blood stage (IC50=190 nM for male gametocytes). FNDR-20123 free base inhibits HDAC1, HDAC2, HDAC3, HDAC6, and HDAC8 (IC50=25, 29, 2, 11, and 282 nM, respectively) and inhibits Class III HDAC isoforms at nanomolar concentrations.

Ac-Arg-Gly-Lys(Ac)-AMC is a substrate for HDAC.

Psammaplin A, a marine metabolite, is a potent inhibitor of HDAC and DNA methyltransferases. Psammaplin A ia a highly potent and selective DAC1 inhibitor with an IC50 of 0.9 nM. Psammaplin A possess the antimicrobial effect on the Gram-positive bacteria and inhibits DNA synthesis and DNA gyrase activity. Antitumor Activity.

Tucidinostat D4 (Chidamide D4) is the deuterium labeled Tucidinostat. Tucidinostat is a potent and orally bioavailable HDAC enzymes class I (HDAC1/2/3) and class IIb (HDAC10) inhibitor, with IC50s of 95, 160, 67 and 78 nM, respectively.

MPI_5a is a potent selective inhibitor of HDAC6, and poorly blocks other HDAC enzymes.

Tubastatin A TFA (Tubastatin A trifluoroacetate salt) is a potent and selective HDAC6 inhibitor with IC50 of 15 nM in a cell-free assay. It is selective against all the other isozymes (1000-fold) except HDAC8 (57-fold). Tubastatin A promotes autophagy and increases apoptosis.

SALL4 peptide FFW (RRKFAKFQWI, FFW peptide) is a potent therapeutic SALL4 peptide antagonist of SALL4-NURD (nucleosome remodeling deacetylase) interaction with target affinity of 23 nM.

WT-161 is a potent and selective HDAC6 inhibitor with an IC50 of 0.40 nM.

Tianeptinostat is a class I HDAC inhibitor with IC50 of 28, 33 and 51 nM for HDAC1, 2 and 3, respectively, also inhibits HDAC6 (IC50=1.6 nM) but not HDAC5 (IC50>80 uM).

Tianeptinaline is a class I HDAC-selective, brain penetrant analogue of tianeptine with IC50 of 0.24, 0.12 and 0.155 uM for HDAC1, 2 and 3 respectively, does not inhibit HDAC6.

Resminostat(RAS2410; 4SC-201) is a potent inhibitor of HDAC1/3/6(IC50=43-72 nM); less potent to HDAC8 with IC50 of 877 nM.

MPT0G211 is a novel potent, selective HDAC6 inhibitor with IC50 of 0.291 nM, displays >1,000-fold selectivity over other HDAC isoforms.

MPT0E028 is a potent HDAC inhibitor that inhibits nuclear HDAC activity with IC50 of 11.1 nM in HeLa cells, 9-30 times more potent than SAHA.

ACY-957 (ACY957) is a potent, selective inhibitor of HDAC1 and HDAC2 with IC50 of 7 and 18 nM, shows limited activity against HDAC3 (IC50=1,300 nM) and no activity against HDAC4/5/6/7/8/9 (IC50>20 nM).

A potent, selective HDAC1 inhibitor with IC50 of 1.5 uM.

A potent and selective HDAC8 inhibitor with IC50 of 70 nM.

A potent and selective HDAC8 inhibitor with IC50 of 0.5 uM..