[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch1][=C][=C][C][C][/C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][O-1][/C][C]"}, {"from": "gpt", "value": "The molecule is an unsaturated fatty acid anion that is the conjugate base of geranic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a geranic acid."}]