Home>>Signaling Pathways>> Immunology/Inflammation>> Aryl Hydrocarbon Receptor>>CH 223191
CH 223191 Catalog No.GC16220

AhR antagonist

Size Price Stock Qty
Ship Within 7 Days
Ship Within 7 Days

Customer Review

Based on customer reviews.

Tel: (626) 353-8530 Email: sales@glpbio.com

Sample solution is provided at 25 µL, 10mM.

Quality Control

Quality Control & SDS

View current batch:

Chemical Properties

Cas No. 301326-22-7 SDF
Chemical Name 2-methyl-N-[2-methyl-4-[(2-methylphenyl)diazenyl]phenyl]pyrazole-3-carboxamide
Canonical SMILES CC1=CC=CC=C1N=NC2=CC(=C(C=C2)NC(=O)C3=CC=NN3C)C
Formula C19H19N5O M.Wt 333.39
Solubility ≥33.3mg/mL in DMSO Storage Store at -20°C
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
  • Molarity Calculator

  • Dilution Calculator

**When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / CoA (available online).



CH-223191 is a potent and specific antagonist of aryl hydrocarbon receptor (AhR).CH-223191 inhibits TCDD-mediated nuclear translocation and DNA binding of AhR, and inhibits TCDD-induced luciferase activity with an IC50 of 0.03 μM[1].

CH-223191 (0.1-10 μM; pre-treated 1 hour) inhibits TCDD-caused cytochrome P450 1A1 mRNA expression in a in dose-dependent manner[1].CH-223191 (0.1-10 μM; pre-treated 1 hour) causes a concentration-dependent inhibition of TCDD-induced cytochrome P450 enzyme activity[1].

CH-223191 (10 mg/kg; once a day; 25 days) suppresses cytochrome P450 1A1 expression and the intrahepatocyte fat content in liver, reduces activity of AST and ALT in TCDD-treated mice[1].

[1]. Zhao B, et al. CH223191 is a ligand-selective antagonist of the Ah (Dioxin) receptor. Toxicol Sci. 2010 Oct;117(2):393-403.
[2]. Kim SH, et al. Novel compound 2-methyl-2H-pyrazole-3-carboxylic acid (2-methyl-4-o-tolylazo-phenyl)-amide (CH-223191) prevents 2,3,7,8-TCDD-induced toxicity by antagonizing the aryl hydrocarbon receptor. Mol Pharmacol. 2006 Jun;69(6):1871-8.