For research use only.

Catalog No.S7324

12 publications

TMP269 Chemical Structure

Molecular Weight(MW): 514.52

TMP269 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.

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Selleck's TMP269 has been cited by 12 publications

3 Customer Reviews

  • Staining of live (calcein-AM, green) and dead (PI, red) UCC cells after 72 h of treatment with TMP269. Data shown are a representative experiment of a set of 3

    Clin Epigenetics, 2018, 10(1):100. TMP269 purchased from Selleck.

    B, 5×106 293T, HeLa, A549, and H1299 cells were seeded in 10-cm dishes on day 0 and treated with dimethyl sulfoxide, 10 μM TMP269, 10 μM LMK-235, or butyrate as indicated for 12 h. Cell lysates were collected for Western blotting analysis of Apaf-1 and β-actin.

    THE JOURNAL OF BIOLOGICAL CHEMISTRY, 2016, 291(14):7386-7395.. TMP269 purchased from Selleck.

  • TMP269 impairs locomotor functional recovery after SCI. Luxol fast blue (LFB) staining of injured spinal cord sections at the epicenter of injury site on 6 weeks post-injury in vehicle group and TMP269 group (n=6).

    J Cell Biochem, 2018, 119(4):3081-3090. TMP269 purchased from Selleck.

Purity & Quality Control

Choose Selective HDAC Inhibitors

Biological Activity

Description TMP269 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.
HDAC9 [1]
(Cell-free assay)
HDAC7 [1]
(Cell-free assay)
HDAC5 [1]
(Cell-free assay)
HDAC4 [1]
(Cell-free assay)
23 nM 43 nM 97 nM 157 nM
In vitro

TMP269 has no impact on the mitochondrial activity and/or the viability of human CD4+ T cells at 10 μM, and may be used as tools to identify the endogenous substrates of the class IIa HDAC enzymes. [1] In IEC-18 intestinal epithelial cells, TMP269 prevents cell cycle progression, DNA synthesis, and proliferation induced in response to G protein-coupled receptor/PKD1 activation. [2]


Kinase Assay:[1]
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HDAC selectivity assays:

Dose-response studies are done with ten concentrations in a threefold dilution series from a maximum final compound concentration of 100 μM in the reaction mixture and are conducted at Reaction Biology Corp. All assays are based on the same principle as the HDAC9 assay described above: the deacetylation of acetylated or trifluoroacetylated lysine residues on fluorogenic peptide substrates by HDAC. HDAC1, HDAC2, HDAC3, HDAC6, HDAC10 and HDAC11 used a substrate based on residues 379-382 of p53 (Arg-His-Lys-Lys(Ac)). For HDAC8, the diacetylated peptide substrate, based on residues 379–382 of p53 (Arg-His-Lys(Ac)-Lys(Ac)), is used. HDAC4, HDAC5, HDAC7 and HDAC9 assays used the class IIa HDAC–specific fluorogenic substrate (Boc-Lys(trifluoroacetyl)-AMC). All reactions are done with 50 μM HDAC substrate in assay buffer (50 mM Tris-HCl, pH 8.0, 137 mM NaCl, 2.7 mM KCl, 1 mM MgCl2, 1 mg/mL BSA) containing 1% DMSO final concentration; incubated for 2 h at 30 °C; and developed with trichostatin A and trypsin.
Cell Research:[1]
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  • Cell lines: Human CD4+ T cells
  • Concentrations: 10 μM
  • Incubation Time: 72 hours
  • Method: Human CD4+ T cells are isolated from whole blood via negative selection according to manufacturer's instructions (RosetteSep Human CD4+ T cell enrichment kit), re-suspended in T-cell culture medium (10% FBS, 2 mM L-glutamine, 1 mM pyruvate, 10 mM HEPES, 10 U/10 mg penicillin/streptomycin, 0.5% DMSO in RPMI) and plated at 50,000 cells/well with IL-2 (10 BRMP units/mL) and 100,000 human T-expander Dynabeads for 72 h. Determination of mitochondrial function or cell viability is done according to manufacturer’s instructions (Cell Proliferation Assay Kit I (MTT)) and is represented as a percent of control (no inhibitor) wells.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (194.35 mM)
Ethanol 2 mg/mL warmed (3.88 mM)
Water Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 514.52


CAS No. 1314890-29-3
Storage powder
in solvent
Synonyms N/A
Smiles FC(F)(F)C1=NC(=NO1)C2=CC=CC(=C2)C(=O)NCC3(CCOCC3)C4=NC(=CS4)C5=CC=CC=C5

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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HDAC Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID