[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch1][#C][C][Branch1][#Branch1][C][C][C][Ring1][=Branch1][=O][Branch1][C][C][C][O][/C][=C][/C][=Branch1][=C][=C][/C][=C][/C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][O][/C][/C]"}, {"from": "gpt", "value": "The molecule is a retinoid that consists of all-trans-retinoic acid carrying an oxo substituent at position 4 and a hydroxy substituent at position 16. It is a retinoid, an enone, a hydroxy monocarboxylic acid and an oxo monocarboxylic acid. It is functionally related to an all-trans-retinoic acid. It is a conjugate acid of an all-trans-4-oxo-16-hydroxyretinoate."}]