[{"from": "human", "value": "What can you tell me about this molecule? [C][C][/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 polyunsaturated fatty acid that is tetracosanoic acid having seven double bonds at positions 2, 6, 9, 12, 15, 18 and 21 (the 2E,6Z,9Z,12Z,15Z,18Z,21Z-isomer). It is a polyunsaturated fatty acid, a very long-chain fatty acid, a straight-chain fatty acid and an alpha,beta-unsaturated monocarboxylic acid."}]