[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=Branch1][Branch1][=C][N][Ring1][Branch2][C][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is an organic cation resulting from the protonation of the primary amino group of 4-hydroxytryptamine. The major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a 4-hydroxytryptamine."}]