3-Methoxytyramine (also known as 4-(2-Aminoethyl)-2-methoxyphenol, 4-(2-Amino-ethyl)-2-methoxy-phenol, 3-O-methyldopamine, Methoxytyramine, 3-Methoxy-4-hydroxyphenethylamine, Phenol, 4-(2-aminoethyl)-2-methoxy-, 5-(2-aminoethyl)guaiacol, 4-(2-aminoethyl)-2-methoxy-Phenol, Homovanillinamine or Homovanillylamine) is a substance of the catecholamine class.