[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][Ring1][P][C][C][S][C][=C][Ring1][=Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][#C][C][=N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a thiochromane that is acetylene in which the hydrogens are replaced by 5-carboxypyridin-2-yl and 4,4-dimethylthiochroman-6-yl groups. It is the active form of the prodrug tazarotene. It has a role as a keratolytic drug and a teratogenic agent. It is a monocarboxylic acid, a thiochromane, a retinoid and a member of pyridines."}]