[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an ammonium betaine that is the conjugate base of choline hydrogen sulfate, obtained by deprotonation of the sulfate OH group. It is an ammonium betaine and a member of choline sulfates. It is a conjugate base of a choline hydrogen sulfate."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][C][C][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}]