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C8124

Sigma-Aldrich

CH-223191

≥98% (HPLC), powder, AhR antagonist

Synonym(s):

1-Methyl-N-[2-methyl-4-[2-(2-methylphenyl)diazenyl]phen yl-1H-pyrazole-5-carboxamide, 2-Methyl-2H-pyrazole-3-carboxylic acid (2-methyl-4-o-tolylazo-phenyl)-amide

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About This Item

Empirical Formula (Hill Notation):
C19H19N5O
CAS Number:
301326-22-7
Molecular Weight:
333.39
MDL number:
MFCD00377884
UNSPSC Code:
12352200
PubChem Substance ID:
329775161
NACRES:
NA.77

product name

CH-223191,

Assay

≥98% (HPLC)

Quality Level

100

form

powder

color

orange-brown

solubility

DMSO: ≥20 mg/mL

storage temp.

2-8°C

SMILES string

Cc1cc(ccc1NC(=O)c2ccnn2C)\N=N\c3ccccc3C

InChI

1S/C19H19N5O/c1-13-6-4-5-7-17(13)23-22-15-8-9-16(14(2)12-15)21-19(25)18-10-11-20-24(18)3/h4-12H,1-3H3,(H,21,25)/b23-22+

InChI key

LKTNEXPODAWWFM-GHVJWSGMSA-N

Application

CH-223191 has been used as aryl hydrocarbon receptor (AHR) antagonist in HepaRG cells, TH17-IL-10+ cells and organoids.

Biochem/physiol Actions

CH-223191 is a potent and specific aryl hydrocarbon receptor (AhR) antagonist. It inhibited TCDD-mediated nuclear translocation and DNA binding of AhR, and inhibited TCDD-induced luciferase activity with an IC50 of 30nM. Unlike some other AhR antagonists which display agonist activity at high concentrations, CH-223191 did not stimulate AhR-dependent transcription even at 100 micromolar. It is also specific for AhR, displaying no affinity for the estrogen receptor, as some other antagonists do.

Features and Benefits

This compound is a featured product for Gene Regulation research. Click here to discover more featured Gene Regulation products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the Nuclear Receptors (Non-Steroids) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

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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Lei Dong et al.
Scientific reports, 6, 36598-36598 (2016-11-04)
Understanding of T helper 17 lineage (T
Michela Zago et al.
PloS one, 8(9), e74953-e74953 (2013-10-03)
The aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor that responds to man-made environmental toxicants, has emerged as an endogenous regulator of cyclooxygenase-2 (Cox-2) by a mechanism that is poorly understood. In this study, we first used AhR-deficient (AhR(-/-) )
Ping Gong et al.
Molecular and cellular endocrinology, 437, 190-200 (2016-08-21)
Botanical estrogen (BE) dietary supplements are consumed by women as substitutes for loss of endogenous estrogens at menopause. To examine the roles of estrogen receptor α (ERα) and aryl hydrocarbon receptor (AhR) and their crosstalk in the actions of BEs
A D van den Brand et al.
Molecular and cellular endocrinology, 496, 110520-110520 (2019-07-29)
Some environmental contaminants and pharmaceuticals increase the incidence of uterine tumors in toxicological studies with rats. These tumors can result from a hormonal imbalance due to rat-specific disrupted pituitary prolactin regulation, and are therefore of questionable relevance for humans. In
Lactobacillus accelerates ISCs regeneration to protect the integrity of intestinal mucosa through activation of STAT3 signaling pathway induced by LPLs secretion of IL-22
Hou Q, et al.
Cell Death and Differentiation, 1-1 (2018)
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