[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][/C][=C][\\C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a medium-chain fatty acid anion and the conjugate base of obtusilic acid, arising from deprotonation of the carboxylic acid group. It is a straight-chain fatty acid anion and a medium-chain fatty acid anion. It is a conjugate base of a cis-4-decenoic acid."}]