[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][Ring2][C][C][=O][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is an ammonium ion that is the conjugate acid of 4-aminobutanal; major species at pH 7.3. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite. It is an ammonium ion derivative, an organic cation and an omega-ammonioaldehyde. It is a conjugate acid of a 4-aminobutanal."}]