– β-Naphthoflavone-CH2-OH (β-NF-CH2-OH) serves as an AhR E3 ligase ligand, forming chimeric molecules when connected to a protein ligand through a linker, resulting in PROTACs or SNIPERs (e.g., β-naphthoflavone-JQ1). These chimeric molecules recruit the AhR E3 ligase complex by incorporating AhR ligands. By inducing ubiquitination-mediated degradation, PROTACs effectively target and degrade cancer-promoting proteins [1].