[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C@@H1][Branch1][C][C][C@H1][Branch2][Ring2][Ring1][C@H1][Branch2][Ring1][=C][C][C@@H1][Branch1][C][C][C][C@@H1][Branch2][Ring1][Ring1][C][C][C][C][C@H1][Branch1][O][C][C@@H1][Branch1][=Branch1][C@H1][Branch1][C][C][NH3+1][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is an ammonium ion resulting from the protonation of the amino group of (2S,3S,5R,10R,12S,14S,15R,16R)-2-amino-12,16-dimethylicosane-3,5,10,14,15-pentol. Major species at pH 7.3. It is a conjugate acid of a (2S,3S,5R,10R,12S,14S,15R,16R)-2-amino-12,16-dimethylicosane-3,5,10,14,15-pentol."}]