Synonyms: Pyridine,4,4'-(1,2-ethenediyl)bis-, (E)-;Pyridine, 4,4'-vinylenedi-, (E)- (8CI);(E)-1,2-Bis(4-pyridinyl)ethene;(E)-1,2-Bis(4-pyridyl)ethene;(E)-1,2-Bis(4-pyridyl)ethylene;(E)-4,4'-Diazastilbene;(E)-4,4'-Vinylenedipyridine;1,2-trans-(4-Pyridyl)ethene;1,2-trans-Bis(4-pyridyl)ethene;1,2-trans-Bis(4-pyridyl)ethylene;SERS 440;trans-1,2-Bis(4-pyridinyl)ethene;trans-1,2-Bis(4-pyridyl)ethene;trans-1,2-Bis(4-pyridyl)ethylene;trans-1,2-Di(4-pyridyl)ethylene;trans-1,2-Di-4-pyridylethene;trans-4,4'-Dipyridylethylene;trans-Bis(4-pyridyl)ethylene;