Catalog No.S9648 Synonyms: EP31670

For research use only.

NEO2734 (EP31670) is a novel, orally active and selective dual inhibitor of p300/CBP and BET bromodomain with IC50 of both <30 nM.

NEO2734 Chemical Structure

CAS No. 2081072-29-7

Selleck's NEO2734 has been cited by 1 Publication

Purity & Quality Control

Choose Selective Epigenetic Reader Domain Inhibitors

Biological Activity

Description NEO2734 (EP31670) is a novel, orally active and selective dual inhibitor of p300/CBP and BET bromodomain with IC50 of both <30 nM.
p300/CBP [1]
(Cell-free assay)
BET [1]
(Cell-free assay)
<30 nM <30 nM
In vitro

Treatment of NMC cells with the novel dual p300/CBP and BET bromodomain–selective inhibitor, NEO2734, potently inhibits growth and induces differentiation of NMC cells in vitro; findings that correspond with potentiated transcriptional effects from combined BET and p300 bromodomain inhibition.[1]

In vivo

In three disseminated NMC xenograft models, NEO2734 provides greater growth inhibition, with tumor regression and significant survival benefit seen in two of three models, compared with a lead clinical BET inhibitor or “standard” chemotherapy.[1]

Protocol (from reference)

Cell Research:


  • Cell lines: NUT carcinoma patient cell lines (TC-797, 14169, 10-15, PER-403)
  • Concentrations: 1 μM
  • Incubation Time: 24 h
  • Method:

    NUT carcinoma patient cell lines (TC-797, 14169, 10-15, and PER-403) are plated in T-25 flasks and grown in DMEM (797) containing 10 % fetal bovine serum and 1 % penicillin/streptomycin. Cells are treated with either 500 nM OTX-015, 1 μM GNE-781, combination of 62.5 nM GNE-781 and 62.5 nM OTX-015, 1 μM NEO2734, or the equivalent volume of DMSO (0.025 %). At 24H, 2 × 106 cells are spun at 500 × g for 5 minutes at 4 ℃ and washed twice with PBS. Pellets are resuspended in 1 ml of cold PBS and added dropwise while gently vortexing to 9 ml 70 % ethanol in a 15 ml polypropylene centrifuge tube. Fixed cells are then frozen at –20 ℃ overnight. The next day, cells are centrifuged at 500 × g for 10 minutes at 4 ℃ and washed twice with 3 ml of cold PBS. Cells are resuspended in 400 μl of propidium iodide staining solution (0.2 mg/ml RNAse A, 0.02 mg/ml propidium iodide, 0.1 % Triton-X in PBS) and incubated for 15 minutes at 37 ℃.

Animal Research:


  • Animal Models: tumor bearing NSG mice
  • Dosages: 8 mg/kg
  • Administration: Oral gavage

Solubility (25°C)

In vitro

Chemical Information

Molecular Weight 435.44


CAS No. 2081072-29-7
Storage 3 years -20°C powder
2 years -80°C in solvent

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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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