Catalog No. size PriceQuantity
M6579-2 2mg solid $111
M6579-10 10mg solid $447


WEHI-345 is a potent and selective RIPK2 inhibitor which shows NOD signalling events yet prevents inflammatory cytokine production. WEHI-345 delays RIPK2 ubiquitylation and NF-κB activation downstream of NOD engagement. Despite only delaying NF-κB activation on NOD stimulation, WEHI-345 prevents cytokine production in vitro and in vivo and ameliorates experimental autoimmune encephalomyelitis in mice.

Product information

CAS Number: 1354825-58-3

Molecular Weight: 401.46

Formula: C22H23N7O




WEHI 345

Chemical Name: N-(2-(4-amino-3-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-2-methylpropyl)isonicotinamide

Smiles: CC1C=CC(=CC=1)C1=NN(C2=NC=NC(N)=C12)C(C)(C)CNC(=O)C1C=CN=CC=1


InChi: InChI=1S/C22H23N7O/c1-14-4-6-15(7-5-14)18-17-19(23)26-13-27-20(17)29(28-18)22(2,3)12-25-21(30)16-8-10-24-11-9-16/h4-11,13H,12H2,1-3H3,(H,25,30)(H2,23,26,27)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

WEHI-345 (500 nM; Raw 267.4 cells) is able to inhibit MDP-induced autophosphorylation activity of RIPK2 in cells. WEHI-345 (500 nM; 0 hour, 2 hours, 4 hours, 8 hours; BMDMs or THP-1 cells) potently blocks MDP-induced transcription of the inflammatory mediators TNF and interleukin-6 (IL-6) in bone marrow-derived macrophages (BMDMs). In THP-1 cells, WEHI-345 reduces mRNA levels of NF-kB targets such as TNF, IL-8, IL-1b and A20.

In Vivo:

WEHI-345 (20 mg/kg; intraperitoneal injection; twice daily; for 6 days; C57BL/6 male mice) treatment reduces disease score, inflammatory infiltrate, histological score and recruitment of dendritic cells to the site of inflammation. And improves body weight and reduces cytokine and chemokine levels, indicating an overall improvement of the condition in experimental autoimmune encephalomyelitis (EAE)-induced wild-type C57Bl/6 mice.


  1. Nachbur U, Stafford CA, Bankovacki A, Zhan Y, Lindqvist LM, Fiil BK, Khakham Y, Ko HJ, Sandow JJ, Falk H, Holien JK, Chau D, Hildebrand J, Vince JE, Sharp PP, Webb AI, Jackman KA, Mühlen S, Kennedy CL, Lowes KN, Murphy JM, Gyrd-Hansen M, Parker MW, Hartland EL, Lew AM, Huang DC, Lessene G, Silke J. A RIPK2 inhibitor delays NOD signalling events yet prevents inflammatory cytokine production. Nat Commun. 2015 Mar 17;6:6442. doi: 10.1038/ncomms7442. PubMed PMID: 25778803.

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

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