Synonyms: 1(2H)-Pyrimidinepropanoic acid, a-amino-3,4-dihydro-2,4-dioxo-,(?à)-; 1(2H)-Pyrimidinepropionic acid, a-amino-3,4-dihydro-2,4-dioxo-,DL- (8CI); DL-Willardiine (6CI); (?à)-Willardiine; DL-b-(2,4-Dioxo-1-pyrimidinyl)alanine; a-Amino-b-(1-uracilyl)propionic acid