HDAC8 Selective Inhibitors

Catalog No. Product Name Information Selective / Pan IC50 / Ki
S2012 PCI-34051

PCI-34051 is a potent and specific HDAC8 inhibitor with IC50 of 10 nM in a cell-free assay. It has greater than 200-fold selectivity over HDAC1 and 6, more than 1000-fold selectivity over HDAC2, 3, and 10. PCI-34051 induces caspase-dependent apoptosis.

Selective HDAC8, IC50: 10 nM
S5810 UF010

UF010 is a class I HDAC-selective inhibitor with IC50 values of 0.5 nM, 0.1 nM, 0.06 nM, 1.5 nM, 9.1 nM and 15.3 nM for HDAC1, HDAC2, HDAC3, HDAC8, HDAC6 and HDAC10, respectively.

Pan HDAC8, IC50: 1.5 nM
S1096 Quisinostat (JNJ-26481585) 2HCl

Quisinostat (JNJ-26481585) 2HCl is a novel second-generation HDAC inhibitor with highest potency for HDAC1 with IC50 of 0.11 nM in a cell-free assay, modest potent to HDACs 2, 4, 10, and 11; greater than 30-fold selectivity against HDACs 3, 5, 8, and 9 and lowest potency to HDACs 6 and 7. Phase 2.

Pan HDAC8, IC50: 4.26 nM
S1194 CUDC-101

CUDC-101 is a potent multi-targeted inhibitor against HDAC, EGFR and HER2 with IC50 of 4.4 nM, 2.4 nM, and 15.7 nM, and inhibits class I/II HDACs, but not class III, Sir-type HDACs. Phase 1.

Pan HDAC8, IC50: 79.8 nM
S8001 Ricolinostat (ACY-1215)

Ricolinostat (ACY-1215, Rocilinostat) is a selective HDAC6 inhibitor with IC50 of 5 nM in a cell-free assay. It is >10-fold more selective for HDAC6 than HDAC1/2/3 (class I HDACs) with slight activity against HDAC8, minimal activity against HDAC4/5/7/9/11, Sirtuin1, and Sirtuin2. Ricolinostat (ACY-1215) suppresses cell proliferation and promotes apoptosis. Phase 2.

Pan HDAC8, IC50: 100 nM
S8769 Tinostamustine(EDO-S101)

Tinostamustine(EDO-S101) is a first-in-class alkylating deacetylase inhibitor with IC50 values of 9 nM, 9 nM, 25 nM and 107 nM for HDAC1, HDAC2, HDAC3 and HDAC8 (Class 1 HDACs) respectively and 6 nM, 72 nM for HDAC6 and HDAC10 (Class II HDACs).

Pan HDAC8, IC50: 107 nM
S7726 BRD73954

BRD73954 is a potent and selective HDAC inhibitor with IC50 of 36 nM and 120 nM for HDAC6 and HDAC8, respectively.

Pan HDAC8, IC50: 120 nM
S8464 Citarinostat (ACY-241)

Citarinostat (ACY-241, HDAC-IN-2) is an orally available selective HDAC6 inhibitor with IC50 of 2.6 nM and 46 nM for HDAC6 and HDAC3, respectively. It has 13 to 18-fold selectivity towards HDAC6 in comparison to HDAC1-3.

Pan HDAC8, IC50: 137 nM
S1515 Pracinostat (SB939)

Pracinostat (SB939) is a potent pan-HDAC inhibitor with IC50 of 40-140 nM with exception for HDAC6. It has no activity against the class III isoenzyme SIRT I. Pracinostat (SB939) induces apoptosis in tumor cells. Phase 2.

Pan HDAC8, IC50: 140 nM
S1090 Abexinostat (PCI-24781)

Abexinostat (PCI-24781, CRA-024781) is a novel pan-HDAC inhibitor mostly targeting HDAC1 with Ki of 7 nM, modest potent to HDACs 2, 3, 6, and 10 and greater than 40-fold selectivity against HDAC8. Phase 1/2.

Pan HDAC8, IC50: 280 nM
S2627 Tubastatin A HCl

Tubastatin A HCl (TSA) is a potent and selective HDAC6 inhibitor with IC50 of 15 nM in a cell-free assay. It is selective (1000-fold more) against all other isozymes except HDAC8 (57-fold more).

Pan HDAC8, IC50: 854 nM
S1422 Droxinostat

Droxinostat (NS 41080) is a selective inhibitor of HDAC, mostly for HDACs 6 and 8 with IC50 of 2.47 μM and 1.46 μM, greater than 8-fold selective against HDAC3 and no inhibition to HDAC1, 2, 4, 5, 7, 9, and 10.

Pan HDAC8, IC50: 1.46 μM
S8773 TH34

TH34 is a HDAC inhibitor that shows pronounced selectivity for HDACs 6, 8 and 10 over HDACs 1, 2 and 3. In a NanoBRET assay, TH34 strongly binds HDAC6, 8 and 10 with low-micromolar IC50 concentrations (HDAC6: 4.6 µM, HDAC8: 1.9 µM, HDAC10: 7.7 µM).

Pan HDAC8, IC50: 1.9 μM
S2132 SR-4370

SR-4370 is a potent and selective inhibitor of class I HDACs with IC50 of 0.13 µM, 0.58 µM, 0.006 µM, 2.3 µM, 3.7 µM for HDAC 1, HDAC 2, HDAC 3, HDAC 8, HDAC 6, respectively.SR-4370 suppresses AR signaling and in vivo prostate tumor growth.

Pan HDAC8, IC50: 2.3 μM
S7278 HPOB

HPOB is a potent, selective HDAC6 inhibitor with IC50 of 56 nM, >30-fold selectivity over other HDACs.

Pan HDAC8, IC50: 2.8 μM