[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=C][Branch2][Ring1][Branch2][C][=C][Ring1][=Branch1][C][=Branch1][C][=C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][Branch1][O][C][C][C][Ring2][Ring1][Ring1][Branch1][C][C][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a synthetic retinoic acid agent with potential antineoplastic, chemopreventive, teratogenic and embryotoxic properties.  Bexarotene selectively binds to and activates retinoid X receptors (RXRs), thereby inducing changes in gene expression that lead to cell differentiation, decreased cell proliferation, apoptosis of some cancer cell types, and tumor regression. (NCI04)"}]