18527-85-0 2-(3-Indolylethyl)amino-3-amino-pyridine dihydrochloride 3-(2-((3-Amino-2-pyridyl)amino)ethyl)indole dihydrochloride INDOLE, 3-(2-((3-AMINO-2-PYRIDYL)AMINO)ETHYL)-, DIHYDROCHLORIDE