10385-85-0 87-32-1 DL-Acetyltryptophan DL-N-Acetyltryptophan EINECS 201-739-3 N-Acetyl-DL-tryptophane NSC 49124 Nalpha-acetyl-DL-tryptophan Tryptophan, N-acetyl- d,l-alpha-Acetylamino-3-indolepropionic acid