[{"from": "human", "value": "Could you provide a description of this molecule? [C][S+1][Branch1][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a sulfonium betaine. It is a conjugate base of a (carboxymethyl)(dimethyl)sulfonium."}]