[{"from": "human", "value": "Provide a description of this molecule. [C][C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a long-chain omega-3 fatty acid that is docosanoic acid having three double bonds located at positions 13, 16 and 19 (the (13Z,16Z,19Z-geoisomer). It is an omega-3 fatty acid and a docosatrienoic acid. It is a conjugate acid of a (13Z,16Z,19Z)-docosatrienoate."}]