SMILES: C1=CC2=C(C(=C1)O)C(=CN2)CC[NH3+]
Description: 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.