[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an ammonium ion that is the conjugate acid of trimethylamine, obtained via protonation of the nitrogen; major species at pH 7.3. It has a role as a human xenobiotic metabolite. It is a conjugate acid of a trimethylamine."}, {"from": "gpt", "value": "[C][NH1+1][Branch1][C][C][C]"}]