The aryl hydrocarbon receptor (AhR) is a ligand-dependent intracellular transcription factor whose ligands include some of the most infamous xenobiotics, including dioxin, benzo[a]pyrene, and numerous polyaromatics from soot and coal tar. CAY10465 is an analog of resveratrol acting as a potent and selective AhR agonist, with a Ki of 0.2 nM. CAY10465 is inactive as a ligand for the estrogen receptor even at 100 μM.
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(E)-1-[4-(Trifluoromethyl)phenyl]-2-(3,5-dichlorophenyl)ethene is a stilbene derivative of resveratrol and a selective aryl hydrocarbon receptor agonist.