[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][#Branch2][/C][=C][/C][=C][/C][=Branch1][C][=O][O][C][/C][=C][/C][=C][/C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dodecatetraenedioic acid with double bonds at positions 2, 4, 8, and 10 (all E isomer). It has a role as a metabolite."}]