[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][/C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][O-1][/C]"}, {"from": "gpt", "value": "The molecule is a monounsaturated fatty acid anion resulting from the deprotonation of the carboxy group of (2E)-3-methylhex-2-enoic acid. It is a short-chain fatty acid anion and a monounsaturated fatty acid anion. It is a conjugate base of a (2E)-3-methylhex-2-enoic acid."}]