18527-61-2 3-(2-((3-Amino-4-pyridyl)amino)ethyl)indole dihydrochloride 4-(3-Indolylethyl)amino-3-amino-pyridine dihydrochloride INDOLE, 3-(2-((3-AMINO-4-PYRIDYL)AMINO)ETHYL)-, DIHYDROCHLORIDE