5-(4-Pyridyl)-1,3,4-oxadiazole-2-thiol15264-63-8100 % similar 2-Amino-5-phenyl-1,3,4-oxadiazole1612-76-638 % similar 4,4'-Bipyridine553-26-437 % similar 1,4-Bis(pyrid-4-yl)benzene113682-56-736 % similar 4,4′-(1H-1,2,4-Triazole-3,5-diyl)bis[pyridine]4329-78-634 % similar 4-Phenylpyridine939-23-132 % similar Tetra(4-pyridyl)porphyrin16834-13-230 % similar