[{"from": "human", "value": "What can you tell me about this molecule? [C][C][O][C][=Branch1][C][=O][C][=C][N][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][#C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][S][C][C][C][Ring1][Branch2][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is the ethyl ester of tazarotenic acid. A prodrug for tazarotenic acid, it is used for the treatment of psoriasis, acne, and sun-damaged skin. It has a role as a keratolytic drug, a prodrug and a teratogenic agent. It is a retinoid, a thiochromane, a member of pyridines, an acetylenic compound and an ethyl ester. It is functionally related to a tazarotenic acid."}]