[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][Branch1][Ring1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a synthetic hydrogenated derivative of diethylstilbestrol (DES). Hexestrol exhibits strong affinity for estrogen receptors that are overexpressed in some types of cancers.  When conjugated with a neoplastic drug, hexestrol may selectively concentrate the cytotoxic agent in estrogen receptor-rich tumors.  This agent may also be mutagenic. (NCI04)"}]