2-[3-(4-pyridinyl)-1H-1,2,4-triazol-5-yl]Pyrazine
1H-Imidazole, 1,1'-(1,13-tridecanediyl)bis-
Pyrimidine, 5,5'-(1,4-phenylene)bis-
5-(4-Pyridyl)-1H-tetrazole