● DL-Phenylalanine ● D-Phenylalanine ● L-Homophenylalanine ● D-Homophenylalanine ● L-Homophenylalanine HCL ● L-Phenylalanine HCL ● L-Phenylalanine Tert-butyl Ester HCL ● N-Acetyl-DL-Phenylalanine