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Merck

681669

IWR-1-endo

≥95% (HPLC), solid, Wnt antagonist, Calbiochem®

Synonym(s):

Wnt Antagonist I, IWR-1-endo, Inhibitor of Wnt Response-1, Wnt Pathway Inhibitor I, TNKS1/2 Inhibitor II, Tankyrase1/2 Inhibitor II, Wnt Pathway Inhibitor I, Inhibitor of Wnt Response-1, Tankyrase1/2 Inhibitor II, TNKS1/2 Inhibitor II

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About This Item

Empirical Formula (Hill Notation):
C25H19N3O3
Molecular Weight:
409.44
UNSPSC Code:
12352200
NACRES:
NA.77

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Product Name

Wnt Antagonist I, IWR-1-endo, Wnt Antagonist I, IWR-1-endo, is a cell-permeable inhibitor of TNKS1/PARP5a (IC50 = 131 nM) & TNKS2/PARP5b (IC50 = 56 nM). Suppress Wnt-stimulated transcription activity (IC50 = 180 nM).

assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 10 mg/mL

shipped in

ambient

Quality Level

100

storage temp.

2-8°C

Related Categories

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

General description

A cell-permeable p-imidobenzamidoquinoline, endo-diastereomer that is shown to inhibit the activity of TNKS1/PARP5a and TNKS2/PARP5b in in vitro auto-PARsylation assays (IC50 = 131 and 56 nM, respectively) and effectively suppress Wnt-stimulated transcription activity in L-Wnt-STF-based reporter assays (IC50 = 180 nM), while exhibiting little activity against PARP1 or PARP2 (IC50 >18.75 µM). Although both IWR-1-endo and XAV939 act as reversible Wnt pathway inhibitors and exhibit similar pharmacological effects both in vitro and in vivo, IWR-1-endo exerts its effect via interaction with Axin, while XAV939 binds TNKS directly.

Other Notes

Chen, B., et al. 2009. Nature Chem. Biol.5, 100.
Huang, S.M., et al. 2009. Nature461, 614.

Packaging

Packaged under inert gas

flash_point_f

Not applicable

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Global Trade Item Number

SKUGTIN
681669-10MGCN04055977260274

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