Not Less Than - 95%
1,1-Dimethylethyl [(3S)-3-amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]Acetate; (3S)-1H-1-Benzazepine-1-acetic Acid 3-Amino-2,3,4,5-tetrahydro-2-oxo-1,1-dimethylethyl Ester; tert-Butyl-(S)-(3-amino-2-oxo-2,3,4,5-tetrahydrobenzo[b]azepin-1-yl) Acetate; t-Butyl-3-amino-2,3,4,5-tetrahydro-2-oxo-1H -1-(3S )-benzazepine-1-acetic Acid