[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=Branch1][#Branch2][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][Cl][Cl][O][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a chlorophenoxyacetate anion that is the conjugate base of (2,4-dichlorophenoxy)acetic acid, obtained by deprotonation of the carboxy group. It is a conjugate base of a 2,4-D."}]