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WEHI-539 hydrochloride

Catalog No.
Bcl-xL inhibitor,high affinity and selective
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
In stock
In stock
In stock
In stock

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WEHI-539 hydrochloride is a small-molecule inhibitor of BCL XL with IC50 value of 1.1 nM [1].

WEHI-539 was designed as a BCL-XL inhibitor with high affinity. It interacted with the binding groove of BCL-XL with Kd value of 0.6 nM. In MEF cells lacking MCL-1, WEHI-539 induced apoptosis which was evidenced by the release of mitochondrial cytochrome c and caspase-3 processing. In BCL-XL overexpressed MEF cells, WEHI-539 showed EC50 value of 0.48 μM. WEHI-539 also significantly induced apoptosis of the platelets purified from mice. Besides that, WEHI-539 cannot kill MEF cells lacking BAK because the cell death mediator BAK is regulated by BCL-XL and MCL-1. [1].

[1].  Lessene G, Czabotar PE, Sleebs BE, et al. Structure-guided design of a selective BCL-XL inhibitor. Nature chemical biology, 2013, 9(6): 390-397.

Product Citation

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.2070018-33-4
Solubility≥28.55mg/mL in DMSO
Chemical Name(E)-5-(3-(4-(aminomethyl)phenoxy)propyl)-2-(8-(2-(benzo[d]thiazol-2-yl)hydrazono)-5,6,7,8-tetrahydronaphthalen-2-yl)thiazole-4-carboxylic acid
SDFDownload SDF
Canonical SMILESO=C(C1=C(C([H])([H])C([H])([H])C([H])([H])OC2=C([H])C([H])=C(C([H])([H])N([H])[H])C([H])=C2[H])SC(C3=C([H])C4=C(C([H])=C3[H])C([H])([H])C([H])([H])C([H])([H])/C4=N\N([H])C5=NC6=C([H])C([H])=C([H])C([H])=C6S5)=N1)O[H]
Shipping ConditionEvaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tipsFor obtaining a higher solubility , please warm the tube at 37°C and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.


Cell experiment[1]:

Cell lines

Human colon cancer cell

Preparation method

The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.

Reaction Conditions

1 μM, 24h


Limiting dilution analysis with CSCs that were pre-treated with ABT-737, ABT-199 or WEHI-539 revealed that ABT-737 and WEHI-539 both were sufficient to decrease clonogenic capacity, whereas ABT-199 did not affect clonogenic growth. As WEHI-539 is selective for BCLXL, this points to a dependency of CSCs on BCLXL for survival. Importantly, ABT-737- or WEHI-539-induced loss of clonogenicity could be restored when BCLXL was ectopically overexpressed. When spheroid cultures were treated with ABT-737 or WEHI-539 compounds, CSCs were effectively sensitized toward oxaliplatin and other chemotherapeutic agents.


1. Colak S, Zimberlin CD, Fessler E et al. Decreased mitochondrial priming determines chemoresistance of colon cancer stem cells. Cell Death Differ. 2014 Jul;21(7):1170-7.

Quality Control

Chemical structure

WEHI-539 hydrochloride

Related Biological Data

WEHI-539 hydrochloride

Related Biological Data

WEHI-539 hydrochloride