Catalog No.S7493 Synonyms: IBT 13131

For research use only.

INH1 (IBT 13131) is a cell-permeable Hec1 inhibitor, which specifically disrupts the Hec1/Nek2 interaction.

INH1 Chemical Structure

CAS No. 313553-47-8

Selleck's INH1 has been cited by 1 Publication

Purity & Quality Control

Choose Selective Microtubule Associated Inhibitors

Other Microtubule Associated Products

Biological Activity

Description INH1 (IBT 13131) is a cell-permeable Hec1 inhibitor, which specifically disrupts the Hec1/Nek2 interaction.
Hec1 [1]
In vitro

INH1 reduces the association of Hec1 with kinetochore and decreases global Nek2 protein level in cells. INH1 effectively inhibits the proliferation of human breast cancer lines with GI50 of 10-21 μM. Moreover, INH1 also elicits cell killing activity in part through impairing the Hec1/Nek2 pathway for the spindle checkpoint regulation. [1]

In vivo INH1 (100 mg/kg i.p.) inhibits breast tumor growth in mice bearing MDA-MB-468 human breast cancer xenograft. [1]

Protocol (from reference)

Kinase Assay:[1]
  • Binding assays:

    Surface plasma resonance (SPR) assays are performed at 22.5°C in HBSD buffer [10 mmol/L HEPES, 150 mmol/L NaCl, 0.1% DMSO (pH 7.5)] on Biacore 3000. 6×His-Hec1 and GST-Nek2 are purified. NTA sensor chip or glutathione-modified CM5 chip are used to capture His-Hec1 and GST-Nek2, respectively. The capture level is about 140 to 180 resonance units (RU) at the flow rate of 5 μL/min. For the binding assay, chips are sequentially treated with compounds (1 or 20 μmol/L) and then proteins (50 μg/mL). Retained RUs are recorded and processed (triplicate experiments).

Cell Research:[1]
  • Cell lines: MDA-MB-468, SKBR3, T47D, MDA-MB-361, ZR-75-1, HBL100, MDA-MB-435, HS578T, and MCF10A cells.
  • Concentrations: ~50 μM
  • Incubation Time: 3 days
  • Method: Standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays with a 3-d drug treatment procedure are performed to measure the dose-dependent cytotoxicity of INH1 in cultured cells. Triplicate sets are measured and compiled for final data presentation.
Animal Research:[1]
  • Animal Models: Athymic female BALB/c nude mice bearing MDA-MB-468 human breast cancer xenografts.
  • Dosages: ~100 mg/kg
  • Administration: i.p.

Solubility (25°C)

In vitro

Chemical Information

Molecular Weight 308.40


CAS No. 313553-47-8
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CC1=CC(=C(C=C1)C2=CSC(=N2)NC(=O)C3=CC=CC=C3)C

In vivo Formulation Calculator (Clear solution)

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

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

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

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

* Indicates a Required Field

Please enter your name.
Please enter your email. Please enter a valid email address.
Please write something to us.
Tags: buy INH1 | INH1 supplier | purchase INH1 | INH1 cost | INH1 manufacturer | order INH1 | INH1 distributor