1H-Indole-2-ethanamine, alpha,alpha-dimethyl-, monohydrochloride 3417-71-8 3794-97-6 NK 122 NK-122 alpha,alpha-Dimethyl-1H-indole-2-ethanamine, monohydrochloride beta-(2-Indolyl)-alpha-(dimethyl)ethylamine hydrochloride