NE 52-QQ57

Catalog No. size PriceQuantity
M6978-2 2mg solid $108
M6978-10 10mg solid $458


NE52-QQ57 is an orally available GPR4 antagonist with an IC50 of 70 nM. NE 52-QQ57 significantly inhibited the AGE-induced increased expression of several key inflammatory cytokines and signaling molecules, including tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, inducible nitric oxide synthase (iNOS), nitric oxide (NO), cyclooxygenase 2 (COX2), and prostaglandin E2 (PGE2).

Product information

CAS Number: 1401728-56-0

Molecular Weight: 416.52

Formula: C24H28N6O




NE 52-QQ57


NE 52QQ57

Chemical Name: 2-(4-((2-ethyl-5,7-dimethylpyrazolo[1,5-a]pyrimidin-3-yl)methyl)phenyl)-5-(piperidin-4-yl)-1,3,4-oxadiazole

Smiles: CCC1=NN2C(N=C(C)C=C2C)=C1CC1C=CC(=CC=1)C1=NN=C(O1)C1CCNCC1


InChi: InChI=1S/C24H28N6O/c1-4-21-20(22-26-15(2)13-16(3)30(22)29-21)14-17-5-7-18(8-6-17)23-27-28-24(31-23)19-9-11-25-12-10-19/h5-8,13,19,25H,4,9-12,14H2,1-3H3

Technical Data

Appearance: Solid Power.

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

Solubility: Soluble in DMSO

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:

NE 52-QQ57 effectively blocks GPR4-mediated cAMP accumulation (IC50 26.8 nM in HEK293 cells).

In Vivo:

NE 52-QQ57 (Compound 13) shows a significant anti-inflammatory effect in the rat antigen induced arthritis model after oral administration at 30 mg/kg bid for 20 days[1]. NE 52-QQ57 (30 mg/kg bid po for 4 days) also prevents angiogenesis in the mouse chamber model as well as pain as demonstrated in the rat complete Freund’s adjuvant model.


  1. Liu H, Liu Y, Chen B. Antagonism of GPR4 with NE 52-QQ57 and the Suppression of AGE-Induced Degradation of Type II Collagen in Human Chondrocytes. Chem Res Toxicol. 2020 May 18. doi: 10.1021/acs.chemrestox.0c00111. Epub ahead of print. PMID: 32370492.
  2. Hosford PS, Mosienko V, Kishi K, Jurisic G, Seuwen K, Kinzel B, Ludwig MG, Wells JA, Christie IN, Koolen L, Abdala AP, Liu BH, Gourine AV, Teschemacher AG, Kasparov S. CNS distribution, signalling properties and central effects of G-protein coupled receptor 4. Neuropharmacology. 2018 Aug;138:381-392. doi: 10.1016/j.neuropharm.2018.06.007. Epub 2018 Jun 9. PMID: 29894771; PMCID: PMC6063991.

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

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