[{"from": "human", "value": "Describe this molecule. [C][Branch2][Ring1][#Branch1][C@H1][Branch2][Ring1][C][C@H1][Branch1][=C][C@][Branch1][Ring1][C][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is the 2-carboxy derivative of D-arabinitol. It is functionally related to a D-arabinitol. It is a conjugate acid of a 2-carboxylato-D-arabinitol(1-)."}]