(-)-(R)-Phenylglycine; (-)-Phenylglycine; (2R)-Amino-2-phenylethanoic Acid; (R)-(-)-2-Phenylglycine; (R)-2-Amino-2-phenylacetic Acid; (R)-2-Amino-2-phenylethanoic Acid; (R)-2-Phenyl-2-aminoethanoic Acid; (R)-2-Phenylglycine; (R)-2-Phenylglycine; (R)-Phenylglycine; (R)-Phenylglycine; (R)-?-Phenylglycine; D-(-)-Aminophenylacetic Acid; D-(-)-Phenylglycine; D-(-)-?-Aminophenylacetic Acid; D-(-)-?-Phenylglycine; D-2-Phenylglycine; D-C-Phenylglycine; D-Phenylglycine; D-?-Aminophenylacetic Acid; D-?-Phenylglycine; D-2-Phenylglycine; (R)-?-Aminobenzeneacetic Acid; (?R)-?-Aminobenzeneacetic Acid; Cefalexin EP Impurity A; Ampicillin EP Impurity L