[{"from": "human", "value": "Describe this molecule. [C][C][O][C][=Branch1][C][=O][C][C][C][=O]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester obtained by the formal condensation of the carboxy group of succinic semialdehyde with ethanol. It has a role as a metabolite. It is an aldehyde and a carboxylic ester. It is functionally related to a succinic semialdehyde and an ethanol."}]