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5.04462

IWR-1

Name: IWR-1
Brand: MM

InSolution, ≥95%, 25 mM in DMSO, Wnt Antagonist I, endo

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):

C₂₅H₁₉N₃O₃

CAS Number:

1127442-82-3

Molecular Weight:

409.44

MDL number:

MFCD18086875

UNSPSC Code:

12352200

NACRES:

NA.77

Assay:

≥95% (HPLC)

Form:

liquid

Quality level:

100

Storage condition:

OK to freeze, avoid repeated freeze/thaw cycles, desiccated (hygroscopic), protect from light

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Properties

Quality Level

100

assay

≥95% (HPLC)

form

liquid

manufacturer/tradename

Calbiochem^®

storage condition

OK to freeze, avoid repeated freeze/thaw cycles, desiccated (hygroscopic), protect from light

storage temp.

−70°C

SMILES string

N4(C(=O)[C@@H]5[C@@H]([C@H]6C[C@@H]5C=C6)C4=O)c1ccc(cc1)C(=O)Nc2c3ncccc3ccc2

InChI

1S/C25H19N3O3/c29-23(27-19-5-1-3-14-4-2-12-26-22(14)19)15-8-10-18(11-9-15)28-24(30)20-16-6-7-17(13-16)21(20)25(28)31/h1-12,16-17,20-21H,13H2,(H,27,29)/t16-,17+,20-,21+

InChI key

ZGSXEXBYLJIOGF-ALFLXDJESA-N

Description

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 (Tankyrase1/2 Inhibitor; >Cat. No. 575545) 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.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
Axin

Reversible: yes

Packaging

Packaged under inert gas

Physical form

A 25 mM (5 mg/489 µL) solution of Wnt Antagonist I, IWR-1-endo (Cat. No. 681669) in DMSO.

Preparation Note

Following initial thaw, aliquot and freeze (-70°C). Aliquots are stable for up to 6 months at -70°C.

Other Notes

Wang, H., et al. 2011. ACS Chem. Biol.6, 192.
Chen, B., et al. 2009. Nature Chem. Biol.5, 100.
Huang, S.M., et al. 2009. Nature461, 614.

Legal Information

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

Disclaimer

Toxicity: Irritant (B)

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Storage Class

10 - Combustible liquids

wgk

WGK 2

flash_point_f

188.6 °F - (refers to pure substance)

flash_point_c

87 °C - (refers to pure substance)

Certificates of Analysis (COA)

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Global Trade Item Number

SKU	GTIN
5044620001	04055977264104