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HDAC6 inhibitor
ACY-241 is a new, selective and orally available inhibitor of HDAC6.- Bae J, .et al. , Leukemia, 2018, Sep;32(9):1932-1947 PMID: 29487385
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PI3K/HDAC inhibitor
CUDC-907 (Fimepinostat) is a single small molecule inhibitor that targets both PI3K and HDAC. CUDC-907 is more efficacious than either a single PI3K or HDAC inhibitor reference compound or a combination of the two single agents at maximally tolerated doses.- Bopei Cui, .et al. , Signal Transduct Target Ther, 2023, Sep 25;8(1):366 PMID: 37743418
- Caner Gunaydın, .et al. , Immunopharmacol Immunotoxicol, 2022, Jun;44(3):447-455 PMID: 35291899
- Chie Ishikawa, .et al. , Eur J Haematol, 2020, Eur J Haematol PMID: 32780889
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HDAC Inhibitor
MC1568 is a member of HDAC inhibitors that inhibits the histone deacetylase class II by modifying the genetic expression of various important genes of cell cycle mostly at G1 phase, resulting in the death of breast cancer cells by apoptosis.- Bopei Cui, .et al. , Signal Transduct Target Ther, 2023, Sep 25;8(1):366 PMID: 37743418
- Vivek Bora, .et al. , Can J Physiol Pharmacol, 2021, 6 October PMID: 34614370
- Minoru Ueda, .et al. , Plant Physiol, 2017, Dec; 175(4): 1760-1773 PMID: 29018096
- S Ishikawa, .et al. , Int J Cancer., 2014, 135(11): 2528-2536 PMID: 24346863
- Usui T, .et al. , Hypertension., 2014, Feb;63(2):397-403 PMID: 24166750
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HDAC inhibitor
MS-275 (Entinostat) is a potent HDAC inhibitor with IC50 of 0.3 and 8uM for HDAC1 and HDAC3, respectively.- Chaitra Rai, .et al. , Signal Transduct Target Ther, 2026, Jun 5;11(1):218 PMID: 42248845
- Siva Singothu, .et al. , ACS Infect Dis, 2025, Jul 11;11(7):1922-1933 PMID: 40509567
- Wenguang Liu, .et al. , Biochem Biophys Res Commun, 2024, Dec 20:739:150970 PMID: 39550862
- Vivek Bora, .et al. , Can J Physiol Pharmacol, 2021, 6 October PMID: 34614370
- Taito Kashio, .et al. , Tissue Barriers, 2021, May 6;1911195 PMID: 33955828
- Ting-Yu Chang, .et al. , Biomed Pharmacother, 2021, Jun;138:111485 PMID: 33740521
- Arshdeep Singh, .et al. , Eur J Med Chem, 2021, Apr 5;215:113169 PMID: 33588178
- Minoru Ueda, .et al. , Plant Physiol, 2017, Dec; 175(4): 1760-1773 PMID: 29018096
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HDAC inhibitor
Romidepsin strongly inhibits HDAC1 and HDAC2 with IC5N/A of 1.6 nM and 3.9 nM, respectively, but is relatively weak in inhibiting HDAC4 and HDAC6 with IC5N/A 25 nM and 79N/A nM, respectively.- Dan Lu, .et al. , Sci Adv, 2024, Oct 25;10(43):eadp2229 PMID: 39454005
- Yu-Fang Liu, .et al. , J Biochem Mol Toxicol, 2022, Jun;36(6):e23044 PMID: 35499365
- David Diaz-Carballo, .et al. , Commun Biol, 2021, Mar 3;4(1):276 PMID: 33658617
- Eva Hesping, .et al. , Int J Parasitol Drugs Drug Resist, 2020, 14: 249-256 PMID: 33279862
- Shariful Islam, .et al. , Blood Adv, 2020, 4(20): 5297-5310 PMID: 33108458
- Elena Netchiporouk, .et al. , Oncotarget, 2017, Nov 10; 8(56): 95981-95998 PMID: 29221181
- Ivan V. Litvinov, .et al. , Clin Cancer Res, 2014, 20(14): 3799-3808 PMID: 24850846
- Ivan V Litvinov, .et al. , Cell Cycle., 2014, 15; 13(18): 2975-2982 PMID: 25486484
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HDAC inhibitor
Valproic acid is an HDAC inhibitor, with IC50 in the range of 0.5 and 2 mM, also inhibits HDAC1 (IC50, 400 μM), and induces proteasomal degradation of HDAC2; Valproic acid sodium salt is used in the treatment of epilepsy, bipolar disorder and prevention of migraine headaches.- Dan Zhao, .et al. , Poult Sci, 2022, Mar; 101(3): 101642 PMID: 35016046
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HDAC6 inhibitor
ACY-738 is a potent and selective HDAC6 inhibitor with improved brain bioavailability. ACY-738 inhibits HDAC6 with low nanomolar potency and a selectivity of 60- to 1500-fold over class I HDACs.- Dao Xu, .et al. , Immunohorizons, 2024, Sep 1;8(9):668-678 PMID: 39259207
- Guang Bai, .et al. , Epigenetics of Chronic Pain, 2019, Pages 1-48
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HDAC Inhibitor
LAQ824 (NVP-LAQ824) is a potent novel histone deacetylase inhibitor with significant activity against multiple myeloma.- De-Run Chen, .et al. , Appl Mater Today, 2022, 26: 101363
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HDAC Inhibitor
Trichostatin A (TSA) inhibits the HDACs 1, 3, 4, 6 and 10 with IC50 values around 20 nM.- Essha Chatterjee, .et al. , Front Pharmacol, 2025, Jun 5:16:1544666 PMID: 40538534
- Siva Singothu, .et al. , ACS Infect Dis, 2025, Jul 11;11(7):1922-1933 PMID: 40509567
- Thibaud Reyser, .et al. , Pharmaceutics, 2023, Oct 10;15(10):2440 PMID: 37896200
- Marilyn Goudreault, .et al. , Nat Commun, 2022, Aug 5;13(1):4562 PMID: 35931706
- Goudreault M, .et al. , Research Square, 2021, 22 Nov
- Hiroyuki Imuta, .et al. , Heart Vessels, 2020, Jul 16 PMID: 32676696
- Méndez-Blanco C, .et al. , Cancers (Basel), 2019, Dec 9;11(12). pii: E1984 PMID: 31835431
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HDAC inhibitor
ITF2357 (Givinostat) is a HDACs inhibitor with potential anti-inflammatory, anti-angiogenic, and antineoplastic activities.- Flavien Bizot, .et al. , Mol Ther Nucleic Acids, 2022, Nov 21;30:606-620 PMID: 36514350
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HDAC inhibitor
SB939 is an oral inhibitor of HDAC, selective for class I, II and IV HDACs and displays an IC50 value of 77 nM in an in vitro HDAC1 activity assay.- Giovanni Bocci, .et al. , ACS Pharmacol Transl Sci, 2020, Oct 14 PMID: 33330842
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HDAC6 inhibitor
CAY10603 is a potent and selective HDAC6 inhibitor with IC50 of 2 pM, >200-fold selectivity over other HDACs.- Isin Cakir, .et al. , Nat Metab, 2022, Jan;4(1):44-59 PMID: 35039672
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HDAC6 inhibitor
Tubastatin A 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).- Isin Cakir, .et al. , Nat Metab, 2022, Jan;4(1):44-59 PMID: 35039672
- Isin Cakir, .et al. , Elife, 2022, Mar 24 PMID: 35323110
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HDAC Inhibitor
LBH589 is a hydroxamic acid and acts as a non-selective HDAC inhibitor with IC5o of HDAC1 to be 0.23 nM.- Junichi Yamamoto, .et al. , Sci Rep, 2026, Feb 5;16:7375 PMID: 41639146
- Jalila Chagraoui, .et al. , Cell Stem Cell, 2021, Jan 7;28(1):48-62.e6 PMID: 33417871
- Gils Jose, .et al. , Cancers (Basel), 2020, Oct 31;12(11):E3211 PMID: 33142721
- Shariful Islam, .et al. , Blood Adv, 2020, 4(20): 5297-5310 PMID: 33108458
- Giovanni Bocci, .et al. , ACS Pharmacol Transl Sci, 2020, Oct 14 PMID: 33330842
- Justin Kale, .et al. , EMBO Rep, 2018, Sep; 19(9): e45235 PMID: 29987135
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HDAC Inhibitor
PCI-24781 is a broad-spectrum phenyl hydroxamic acid HDAC inhibitor.- Kazuya Tsumagari, .et al. , Biochem Biophys Res Commun, 2021, Jul 23;563:60-65 PMID: 34062387
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HDAC inhibitor
R306465 is a novel hydroxamate-based histone deacetylase (HDAC) inhibitor with broad-spectrum antitumour activity against solid and haematological malignancies in preclinical models.- Mari Ishigami-Yuasa, .et al. , Biol Pharm Bull, 2019, 42, 448-452 PMID: 30828077
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HDAC Inhibitor
MGCD0103 (Mocetinostat) is a benzamide histone deacetylase inhibitor by inhibiting mainly histone deacetylase 1 (HDAC1), but also HDAC2, HDAC3, and HDAC11.- Mari Ishigami-Yuasa, .et al. , Biol Pharm Bull, 2019, 42, 448-452 PMID: 30828077
- Guang Bai, .et al. , Epigenetics of Chronic Pain, 2019, Pages 1-48
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HDAC inhibitor
JNJ-26481585 (Quisinostat) is a pan-HDAC inhibitor with marked potency toward HDAC1 (IC(50), 0.16 nmol/L).- Minoru Ueda, .et al. , Plant Physiol, 2017, Dec; 175(4): 1760-1773 PMID: 29018096
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HDAC inhibitor
Vorinostat is an inhibitor of HDACs, inhibiting deacetylation and leading to an accumulation of both hyperacetylated histones and transcription factors.- Patricia Raude, .et al. , iScience, 2026, Apr 9;29(6):115671 PMID: 42325264
- Siva Singothu, .et al. , ACS Infect Dis, 2025, Jul 11;11(7):1922-1933 PMID: 40509567
- Masahiro Yamada, .et al. , Int J Hematol, 2024, Sep;120(3):325-336 PMID: 38954186
- Amy E Neely, .et al. , Commun Biol, 2023, Jun 23;6(1):664 PMID: 37353594
- Ting-Yu Chang, .et al. , Biomed Pharmacother, 2021, Jun;138:111485 PMID: 33740521
- David Diaz-Carballo, .et al. , Commun Biol, 2021, Mar 3;4(1):276 PMID: 33658617
- Arshdeep Singh, .et al. , Eur J Med Chem, 2021, Apr 5;215:113169 PMID: 33588178
- Shariful Islam, .et al. , Blood Adv, 2020, 4(20): 5297-5310 PMID: 33108458
- Giovanni Bocci, .et al. , ACS Pharmacol Transl Sci, 2020, Oct 14 PMID: 33330842
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HDAC inhibitor
Sulforaphane activates Nrf2 and inhibits high glucose-induced progression of pancreatic cancer via AMPK dependent signaling. Sulforaphane has shown anti-cancer and anti-inflammatory activities.- Satoshi Endo, .et al. , J Biochem, 2021, Mar 17 PMID: 33729485
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HDAC inhibitor
Belinostat (PXD101) is a HDAC inhibitor that inhibits HDAC activity in HeLa cell extracts with an IC50 of 27 nM.- Shariful Islam, .et al. , Blood Adv, 2020, 4(20): 5297-5310 PMID: 33108458
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HDAC3 inhibitor
RGFP966 is an HDAC3 inhibitor with IC50 of 0.08 μM, exhibits > 200-fold selectivity over other HDAC.- Vijaya Bharti, .et al. , Cell Rep, 2022, Dec 20;41(12):111826 PMID: 36543138
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HDAC inhibitor
TMP 269 is a potent, selective class IIa HDAC inhibitor with IC50 of 157 nM, 97 nM, 43 nM and 23 nM for HDAC4, HDAC5, HDAC7 and HDAC9, respectively.- Yodita Asfaha, .et al. , Eur J Med Chem, 2024, 263: 115907 PMID: 37979441
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HDAC inhibitor
AR-42 is a novel HDAC inhibitor, exhibits biologic activity against malignant mast cell lines via down-regulation of constitutively activated Kit.- Yong-Hui Liao, .et al. , Mol Med Rep, 2018, Feb; 17(2): 2803-2810 PMID: 29257262
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HDAC inhibitor
Droxinostat is a selective inhibitor of HDAC3, HDAC6, and HDAC8 that shows comparable inhibition of HDAC6 and HDAC8 with IC50 = 2.47 and 1.46 μmol/L, respectively. - Parthenolide ((-)-Parthenolide) is a sesquiterpene lactone which occurs naturally in the plant feverfew (Tanacetum parthenium).
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HDAC Inhibitor
Pyroxamide (NSC 696085) is a potent inhibitor of affinity-purified HDAC1 and causes the accumulation of acetylated core histones in MEL cells cultured with the agent. -
HDAC inhibitor
Sodium butyrate (NaB, Butanoic acid sodium salt), sodium salt of butyric acid, is a histone deacetylase inhibitor and competitively binds to the zinc sites of class I and II histone deacetylases (HDACs). -
HDAC inhibitor
Valproic acid sodium salt (Sodium Valproate) is an HDAC inhibitor, with IC50 in the range of 0.5 and 2 mM, also inhibits HDAC1 (IC50, 400 μM), and induces proteasomal degradation of HDAC2. -
HDAC1 and HDAC3 inhibitor
Suberoyl bis-hydroxamic acid (Suberohydroxamic acid; SBHA) is a competitive and cell-permeable HDAC1 and HDAC3 inhibitor with ID50 values of 0.25 μM and 0.30 μM, respectively. -
Fluorometric HDAC Substrate
Boc-Lys(Ac)-AMC is a cell-permeable fluorometric substrate for histone deacetylases (HDACs). When cleaved by HDAC enzymes, it releases a fluorescent signal with excitation and emission maxima at 355 nm and 460 nm, respectively. This compound is valuable for studying HDAC activity in various biological contexts and can be utilized in high-throughput screening assays to evaluate enzyme inhibitors. -
VUBI1 Analogue
VUBI1 analogue-1 is an analogue of VUBI1, functioning as a selective activator of the SOS1 pathway with a Kd of 44 nM. This compound is valuable for studying SOS1 activation mechanisms and provides a basis for the synthesis of (4S)-PROTAC SOS1 degrader-1. Its applications include investigations into targeted degradation and modulation of cellular pathways involving SOS1, offering insights into cellular signaling and potential therapeutic strategies. -
HDAC Inhibitor
HC-Toxin is a potent histone deacetylase (HDAC) inhibitor with an IC50 of 30 nM. This cyclic tetrapeptide effectively induces apoptosis in tumor cells, demonstrating significant anticancer activity. Its mechanism of action makes it valuable for research in cancer therapy and the modulation of gene expression. -
PDE Inhibitor
Theophylline, a potent phosphodiesterase (PDE) inhibitor, primarily targets PDE3, leading to relaxation of airway smooth muscle and enhanced bronchodilation. This compound also functions as an adenosine receptor antagonist and exhibits anti-inflammatory properties by elevating IL-10 levels and inhibiting NF-κB translocation into the nucleus. Additionally, Theophylline has been shown to induce apoptosis in certain cell types. Its applications are particularly relevant in the research of asthma and chronic obstructive pulmonary disease (COPD). -
HDAC3 Inhibitor
HDAC3-IN-2 is a potent inhibitor of histone deacetylase 3 (HDAC3), with an IC50 value of 14 nM. This pyrazinyl hydrazide compound exhibits cytotoxicity against triple-negative breast cancer cell lines, demonstrating an IC50 of 0.55 μM for 4T1 cells and 0.74 μM for MDA-MB-231 cells. In in vivo studies using tumor-bearing mouse models, HDAC3-IN-2 effectively enhances histone acetylation levels at H3K9, H3K27, and H4K12 while promoting apoptosis through increased caspase-3, caspase-7, and cytochrome c levels, alongside a decrease in proliferation markers such as Bcl-2, CD44, EGFR, and Ki-67. -
HDAC1/6 Inhibitor
HDAC1/6-IN-3 is a potent inhibitor of histone deacetylases 1 and 6 (HDAC1 and HDAC6). It demonstrates strong inhibitory activity, with IC50 values of 1.1 nM for HDAC1 and 2.7 nM for HDAC6. This compound effectively induces cell cycle arrest in the G0/G1 phase and promotes both apoptosis and pyroptosis in HepG2 cells. Additionally, HDAC1/6-IN-3 exhibits significant antitumor effects in the HepG2 xenograft model and is valuable for research focused on various types of cancer, including liver, lung, colon, and breast cancers. -
HDAC/JAK/BRD4 Inhibitor
HDAC/JAK/BRD4-IN-1 is a potent inhibitor targeting histone deacetylases (HDAC), Janus kinases (JAK), and bromodomain-containing protein 4 (BRD4). This compound demonstrates significant anti-proliferative effects and promotes apoptosis in MDA-MB-231 breast cancer cells. Additionally, HDAC/JAK/BRD4-IN-1 exhibits promising anticancer activity in vivo, making it a valuable tool for research in cancer therapeutics and the study of epigenetic and signaling pathways. -
HDAC1-3 Inhibitor
HDAC-IN-53 is a selective inhibitor of histone deacetylases 1-3, demonstrating IC50 values of 47 nM, 125 nM, and 450 nM for HDAC1, HDAC2, and HDAC3, respectively. This compound exhibits minimal off-target effects, as it does not inhibit class II HDACs (IC50 > 10 μM). HDAC-IN-53 promotes caspase-dependent apoptosis and has been shown to inhibit the growth of human tumor xenografts in nude mice, as well as murine tumors in immune-competent mice bearing MC38 colon cancer. It serves as a valuable tool for studying cancer biology and potential therapeutic strategies targeting HDAC pathways. -
HDAC6 Inhibitor
QTX125 TFA is a potent and highly selective inhibitor of Histone Deacetylase 6 (HDAC6). This compound demonstrates exceptional selectivity for HDAC6 over other isoforms, making it a valuable tool for studying the role of HDAC6 in various biological processes. QTX125 TFA has shown promising antitumor effects, indicating its potential for use in cancer research and therapeutic applications targeting HDAC6-related pathways. -
HDAC Inhibitor
CRA-026440 hydrochloride is a potent, broad-spectrum histone deacetylase (HDAC) inhibitor, exhibiting Ki values against recombinant HDAC isoenzymes of 4 nM for HDAC1, 14 nM for HDAC2, 11 nM for HDAC3, 15 nM for HDAC6, 7 nM for HDAC8, and 20 nM for HDAC10. This compound demonstrates significant antitumor and antiangiogenic activities, making it relevant for studies in cancer biology. Additionally, CRA-026440 hydrochloride possesses an alkyne functional group, enabling it to participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc), facilitating its use in click chemistry applications for bioconjugation studies. -
HDAC1/2 and CDK2 Inhibitor
HDAC1/2 and CDK2-IN-1 is a dual inhibitor targeting HDAC1, HDAC2, and CDK2, with IC50 values of 70.7 μM, 23.1 μM, and 0.80 μM, respectively. This compound effectively disrupts the cell cycle and promotes apoptosis in tumor cells, demonstrating significant in vivo antitumor activity. It is suitable for research applications focused on cancer biology and therapeutic interventions targeting histone deacetylases and cyclin-dependent kinases. -
HDAC/MBLAC2 Inhibitor
Pracinostat dihydrochloride is a potent inhibitor of histone deacetylases (HDACs), demonstrating IC50 values in the range of 40-140 nM, making it a valuable tool in cancer research. In addition, it effectively inhibits metallo-β-lactamase domain-containing protein 2 (MBLAC2) with an EC50 below 10 nM, highlighting its potential use in studies related to epigenetic regulation and resistance mechanisms in cancer therapies. -
HDAC Inhibitor
HDAC-IN-73 is a potent histone deacetylase (HDAC) inhibitor targeting HDAC1 and HDAC6, with IC50 values of 0.17 µM and 0.49 µM, respectively. Its enhanced activity against HDAC6 demonstrates a nine-fold greater potency compared to PsA, making it a valuable compound in the field of cancer research. HDAC-IN-73 exhibits significant antiproliferative effects, induces apoptosis, and triggers G2/M cell cycle arrest, positioning it as a promising candidate for investigating therapies in colon cancer and other malignancies. -
HDAC Inhibitor
HDAC-IN-96 is a selective inhibitor of histone deacetylases 1 and 2 (HDAC1/2), exhibiting IC50 values of 457.1 nM and 433.7 nM, respectively. This compound demonstrates significant cytotoxicity against various hematological tumor cell lines, including RS4;11, K562, RPMI-8226, and U266, with IC50 values between 2.11 and 5.35 μM. HDAC-IN-96 has been shown to induce apoptosis and cause S phase arrest in cancer cells, making it a valuable tool for research in hematological malignancies such as acute lymphoblastic leukemia. -
Aurora A/Aurora B/HDAC1/HDAC2 Inhibitor
Aurora kinase/HDAC-IN-1 is a potent dual inhibitor targeting Aurora A, Aurora B, HDAC1, and HDAC2. This compound promotes histone H3 acetylation, inhibits Aurora A phosphorylation and downstream signaling, and induces apoptosis through G2/M cell-cycle arrest. It demonstrates significant antiproliferative activity in colorectal cancer cells, with an IC50 of 30.2 nM in HCT-116 cells, and effectively suppresses tumor growth in HCT-116 colorectal cancer xenograft mouse models. This reagent is valuable for research in cancer biology and therapeutic application development. -
HDAC1/CDK7 Inhibitor
HDAC1/CDK7-IN-1 is a dual inhibitor targeting HDAC1 and CDK7, exhibiting IC50 values of 893 nM and 248 nM, respectively. This compound effectively inhibits the proliferation of cancer cell lines, including MDA-MB-231, MCF-7, A549, and HCT-116. Additionally, HDAC1/CDK7-IN-1 induces cell cycle arrest and apoptosis specifically in HCT-116 cells, while also disrupting their migratory capacity. These properties make it a valuable tool for cancer research, particularly in exploring therapeutic strategies that target epigenetic regulation and cell cycle dynamics. -
HDAC Inhibitor
WMJ-J-09 is a potent HDAC inhibitor with sub-nanomolar activity, exhibiting IC50 values of 7.5 nM against HDAC1 and 3.9 nM against HDAC6, along with notable activity towards HDAC2, HDAC3, and HDAC8. This compound effectively disrupts the cell cycle and promotes apoptosis in cancer cells through the LKB1-AMPK-p38MAPK-p63-survivin signaling pathway. By inhibiting HDAC enzyme activity, WMJ-J-09 leads to the acetylation of critical proteins, thus contributing to the regulation of cell death in cancer models, such as HCT116 and FaDu cells. -
HDAC Inhibitor
TH-6 is a potent inhibitor of histone deacetylases (HDACs), demonstrating IC50 values of 0.115 µM for HDAC1, 0.135 µM for HDAC2, 0.242 µM for HDAC3, 0.138 µM for HDAC6, and 2.120 µM for HDAC8. This compound effectively inhibits cell migration and invasion while promoting apoptosis and inducing cell cycle arrest in the G2/M phase. TH-6 exhibits significant anti-tumor activity, making it a valuable tool for cancer research and therapeutic studies.

