1. Cell Cycle/DNA Damage
  2. HDAC
  3. Abexinostat

Abexinostat (Synonyms: CRA 024781; PCI-24781)

Cat. No.: HY-10990 Purity: 98.61%
Handling Instructions

Abexinostat (CRA 024781) is a novel pan-HDAC inhibitor mostly targeting HDAC1 with Ki of 7 nM.

For research use only. We do not sell to patients.

Abexinostat Chemical Structure

Abexinostat Chemical Structure

CAS No. : 783355-60-2

Size Price Stock Quantity
5 mg USD 84 In-stock
Estimated Time of Arrival: December 31
10 mg USD 132 In-stock
Estimated Time of Arrival: December 31
50 mg USD 420 In-stock
Estimated Time of Arrival: December 31
100 mg USD 660 In-stock
Estimated Time of Arrival: December 31
200 mg   Get quote  
500 mg   Get quote  

* Please select Quantity before adding items.

Customer Review

Based on 3 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review


Abexinostat (CRA 024781) is a novel pan-HDAC inhibitor mostly targeting HDAC1 with Ki of 7 nM.

IC50 & Target[1]


7 nM (Ki)


8.2 nM (Ki)


17 nM (Ki)


19 nM (Ki)


24 nM (Ki)


280 nM (Ki)

In Vitro

Abexinostat (CRA 024781) exhibits potent antitumor activity against a variety of tumor cell lines with GI50% ranging from 0.15 μM to 3.09 μM. Abexinostat (CRA 024781) also has an antiproliferative effect on HUVEC endothelial cells with GI50% of 0.43 μM. Abexinostat (CRA 024781) treatment causes dose-dependent accumulation of both acetylated histones and acetylated tubulin in HCT116 or DLD-1 cells, induces expression of p21, and leads to PARP cleavage and accumulation of the γH2AX[1]. Inhibition of HDAC enzymes by Abexinostat (CRA 024781) leads to a significant reduction in the transcription of genes specifically associated with HR, including RAD51. Consistent with inhibition of HR, Abexinostat (CRA 024781) treatment results in a decreased ability to perform homology directed repair of I-SceI-induced chromosome breaks in transfected CHO cells[2]. Abexinostat (CRA 024781) induces S phase depletion, G2 cell cycle arrest, and apoptosis in soft tissue sarcoma (STS) cells. Abexinostat (CRA 024781) induces Rad51 transcriptional repression in STS cells potentially mediated via enhanced E2F1 binding to the Rad51 proximal promoter[3].

In Vivo

Abexinostat (CRA 024781) parenterally administered to mice harboring HCT116 or DLD-1 colon tumor xenografts results in a statistically significant reduction in tumor growth. Inhibition of tumor growth is accompanied by an increase in the acetylation of α-tubulin in peripheral blood mononuclear cells, and an alteration in the expression of many genes in the tumors, including several involved in apoptosis and cell growth[1].

Clinical Trial
Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years

*The compound is unstable in solutions, freshly prepared is recommended.

Solvent & Solubility
In Vitro: 

DMSO : 3.33 mg/mL (8.38 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.5162 mL 12.5811 mL 25.1623 mL
5 mM 0.5032 mL 2.5162 mL 5.0325 mL
10 mM --- --- ---
*Please refer to the solubility information to select the appropriate solvent.
Cell Assay

Ten tumor cell lines and HUVEC are cultured for at least two doubling times, and growth is monitored at the end of compound exposure using an Alamar blue fluorometric cell proliferation assay. The compound is assayed in triplicate wells in 96-well plates at nine concentrations using half-log intervals ranging from 0.0015 to 10 μmol/L. The final DMSO concentration in each well is 0.15%. The concentration required to inhibit cell growth by 50% and 95% confidence intervals are estimated from nonlinear regression using a four-parameter logistic equation[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration

HCT116 and DLD-1 tumor cells are implanted s.c. in female BALB/c nu/nu mice at 3×106 per mouse. Treatment with Abexinostat (CRA 024781) started when the average tumor volume is -100 mm[1]. Mice bearing human colon tumor xenografts are dosed i.v. with Abexinostat (CRA 024781) using various dosages and schedules to assess the antitumor activity of Abexinostat (CRA 024781) [1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.


Purity: 98.61%

  • No file chosen (Maximum size is: 1024 Kb)
  • If you have published this work, please enter the PubMed ID.
  • Your name will appear on the site.
  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2


AbexinostatCRA 024781PCI-24781CRA024781CRA-024781PCI24781PCI 24781HDACHistone deacetylasesInhibitorinhibitorinhibit

Your Recently Viewed Products:

Inquiry Online

Your information is safe with us. * Required Fields.

Product Name



Applicant Name *


Email address *

Phone number *


Organization name *

Department *


Requested quantity *

Country or Region *



Bulk Inquiry

Inquiry Information

Product Name:
Cat. No.:
MCE Japan Authorized Agent: