[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][N][C][C][C][NH2+1][C][C][C][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is a doubly-charged ammonium ion arising from protonation of the primary and secondary amino groups of N(1)-acetylspermidine; 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 and an organic cation. It is a conjugate acid of a N(1)-acetylspermidine."}]