Nexturastat A

For research use only.

Catalog No.S7473

11 publications

Nexturastat A Chemical Structure

CAS No. 1403783-31-2

Nexturastat A is a potent and selective HDAC6 inhibitor with IC50 of 5 nM, >190-fold selectivity over other HDACs.

Selleck's Nexturastat A has been cited by 11 publications

2 Customer Reviews

  • HDAC inhibitors disrupt SS18-SSX/TLE1 co-localization. A significant decrease in detectable PLA signal following HDAC inhibition in SYO-1 cells A, B. is also confirmed by immunoprecipitation C. The decrease in PLA co-localization signal correlates with apoptosis induction by HDAC inhibitor FK228 in SYO-1 cells.

    Oncotarget, 2016, 7(23):34384-94 . Nexturastat A purchased from Selleck.

    Cells were exposed to HDAC Class II selective inhibitors LMK-235 or Nexturastat A (NA) at the indicated concentrations for 48 hrs and analyzed by Western blotting. Rom, romidepsin; Bel, belinostat, Pano, panobinostat; SAHA, suberoylanilide hydroxamic acid.

    Oncotarget, 2016, 7(39):63829-63838. Nexturastat A purchased from Selleck.

Purity & Quality Control

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Biological Activity

Description Nexturastat A is a potent and selective HDAC6 inhibitor with IC50 of 5 nM, >190-fold selectivity over other HDACs.
Features Urea-based HDAC6-selective inhibitor.
HDAC6 [1]
(Cell-free assay)
5 nM
In vitro

In B16 murine melanoma cells, Nexturastat A leads to a dose-dependent increase of acetyl α-tubulin levels without a concomitant elevation of histone H3 acetylation. Moreover, Nexturastat A potently inhibits the growth of B16 melanoma cells with GI50 of 14.3 μM. [1]


Kinase Assay:


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HDAC inhibition assays:

HDAC inhibition assays are performed by Reaction Biology Corp. using isolated human, recombinant full2length HDAC1 and -6 from a baculovirus expression system in Sf9 cells. An acetylated fluorogenic peptide,RHKKAc, derived from residues 379-382 of p53 is used as substrate. The reaction buffer is made up of 50 mM Tris-HCl pH 8.0, 127 mM NaCl, 2.7 mM KCl, 1 mM MgCl2, 1 mg/mL BSA, and a final concentration of 1% DMSO. Compounds are delivered in DMSO and delivered to enzyme mixture with preincubation of 5-10 min followed by substrate addition and incubation for 2 h at 30°C. Trichostatin A and developer are added to quench the reaction and generate fluorescence, respectively. Dose-response curves are generated starting at 30 μM compound with three-fold serial dilutions to generate a 10-dose plot. IC50 values are then generated from the resulting plots, and the values expressed are the average of duplicate trials ± standard deviation.
Cell Research:


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  • Cell lines: B16 murine melanoma cells
  • Concentrations: ~100 μM
  • Incubation Time: 48 hours
  • Method:

    B16 murine melanoma cells are plated at 5000/well in 96 well flat bottom plates. The following day, media is changed to that containing various concentrations of HDACi or matched DMSO vehicle concentrations diluted in complete medium done in triplicate. Cells are incubated for 48 hours at 37°C and 5% CO2. Density of viable, metabolically active cells is quantified using a standard MTS assay as per manufacturer’s instructions. Briefly, 20μL of reagent are added per well and incubated at 37°C for 3 hours. Absorbances at 490nM are measured spectrophotometrically with background subtraction at 690 nM. All values are then normalized and expressed as a percentage of medium control (100%).

    (Only for Reference)

Solubility (25°C)

In vitro DMSO 68 mg/mL (199.17 mM)
Ethanol 2 mg/mL (5.85 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 341.4

C19 H23 N3 O3

CAS No. 1403783-31-2
Storage powder
in solvent
Synonyms N/A
Smiles CCCCN(CC1=CC=C(C=C1)C(=O)NO)C(=O)NC2=CC=CC=C2

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
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The Serial Dilution Calculator Equation

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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