(S)-2-Amino-N,N'-bis(2-(5-hydroxy-1H-indol-3-yl)ethyl)pentanediamide hydrochloride 61059-66-3 Pentanediamide, 2-amino-N,N'-bis(2-(5-hydroxy-1H-indol-3-yl)ethyl)-, monohydrochloride, (S)- alpha,gamma-Di-5-hydroxytryptamide of glutamic acid