[{"from": "human", "value": "Describe this molecule. [C][Branch1][Ring1][C][=O][C][Branch1][#Branch1][C][Branch1][Ring1][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a hydroxyaldehyde that is pentanal carrying three hydroxy substituents at positions 3, 4 and 5. It is a deoxypentose, a hydroxyaldehyde and a triol. It derives from a hydride of a pentanal."}]