(.+-.)-Phenylalanine .beta.-Phenylalanine, dl- 150-30-1 Alanine, phenyl-, DL- DL-.alpha.-Amino-.beta.-phenylpropionic acid DL-.beta.-Phenyl-.alpha.-alanine DL-.beta.-Phenylalanine DL-2-Amino-3-phenylpropanoic acid DL-3-Phenylalanine DL-Phenylalanine NSC9959