1137-00-4 1H-Pyrrolo(2,3-b)pyridine-3-propanoic acid, alpha-amino- (9CI) 1H-Pyrrolo(2,3-b)pyridine-3-propionic acid, alpha-amino- 7-Azatryptophan Azatryptophan alpha-Amino-1H-pyrrolo(2,3-b)pyridine-3-propionic acid