IWP-2, Porcupine (Wnt) Inhibitor

Catalog No. size PriceQuantity
M60115-2D 10 mM DMSO (0.429 mL) $79
M60115-2S 2mg solid $79
M60115-10S 10mg solid $324


Product Information
Molecular Weight: 466.60
Formula: C22H18N4O2S3
Purity: ≥98%
CAS#: 686770-61-6
Solubility: DMSO up to 10 mM
Chemical Name: N-(6-methylbenzo[d]thiazol-2-yl)-2-((4-oxo-3-phenyl-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide
Storage: Powder: 4oC 1 year. DMSO: 4oC 3 month; -20oC 1 year.


Biological Activity:

IWP-2 is a potent and highly selective Wnt signaling antagonist with an IC50 ~ 27 nM in the L-Wnt-STF cellular assay. It prevents palmitoylation of Wnt proteins by Porcupine (a membrane-bound O-acyltransferase), thereby blocking Wnt protein secretion and activity. It blocks Wnt-dependent phosphorylation of Lrp6 receptor and Dvl2, and β-catenin accumulation. IWP-2 is a useful chemical probe in both regenerative medicine and anticancer efforts.


How to Use:


  • In vitro: IWP-2 was used at 1-2 µM in vitro and in cellular assays.
  • In vivo: n/a




  • 1. Chen B, et al. Small molecule-mediated disruption of Wnt-dependent signaling in tissue regeneration and cancer. (2009) Nat Chem Biol. 5(2):100-7.
  • 2. ten Berge D, et al. Embryonic stem cells require Wnt proteins to prevent differentiation to epiblast stem cells. (2011) Nat Cell Biol. 13(9):1070-5.
  • 3. Lian X, et al. Robust cardiomyocyte differentiation from human pluripotent stem cells via temporal modulation of canonical Wnt signaling. (2012) Proc Natl Acad Sci USA. 109(27):E1848-57.      


Products are for research use only. Not for human use.

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