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4‘-(4-hydroxyphenyl)-2, 2':6‘, 2“-terpyridine 4,4'-Dimethyl-2,2'-bipyridyl 2,2'-Bipyridine-4,4'-dicarboxylic acid 2,2'-Bipyridine-4,4'-dicarboxaldehyde 4-Formyl-4'-methyl-2,2'-bipyridine 4,4'-Bis(hydroxymethyl)-2,2'-bipyridine TRIMETHYL 2,2':6',2''-TERPYRIDINE-4,4',4''-TRICARBOXYLATE 4',4,4''-TRIMETHYL-2,2':6',2''-TERPYRIDINE 4'-METHYL-2,2':6',2''-TERPYRIDINE 2,2':6',2''-TERPYRIDINE-4'-CARBALDEHYDE