3-Pyridinepropanoicacid, a-amino- , its cas register number is 17470-24-5. It also can be called N-Pyridin-3-ylalanine ; 3-pyridylalanine ; DL-3-Pyridylalanine ; DL-Alanine, N-3-pyridinyl- ; N-3-Pyridinylalanine .