[{"from": "human", "value": "Describe this molecule. [C][N+1][Branch1][C][C][Branch1][C][C][C][C][O].[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 quaternary ammonium salt resulting from the reaction of 2,4-D with choline. It is a post-emergence herbicide used for selective control of broadleaf weeds. It has a role as a phenoxy herbicide, a synthetic auxin and an agrochemical. It contains a (2,4-dichlorophenoxy)acetate."}]