(S)-2-Amino-N-(2-(5-hydroxy-1H-indol-3-yl)ethyl)-4-(methylthio)butanamide tartrate hydrate 5-Hydroxytryptamide of methionine tartrate hydrate 61059-70-9 Butanamide, 2-amino-N-(2-(5-hydroxy-1H-indol-3-yl)ethyl)-4-(methylthio)-, (S)-, (R-(R*,R*))-2,3-dihydroxybutanedioate (salt), hydrate (1:1:1)