2-Amino-5-phenylpyridine with cas registry number of 33421-40-8 is also known as 5-Phenyl-2-pyridinamine ; 5-22-10-00457 (Beilstein Handbook Reference) ; Phe-P-1 ; 2-Pyridinamine, 5-phenyl- ; Pyridine, 2-amino-5-phenyl- .