.alpha.,.omega.-Diphenyloctatetraene 1,3,5,7-Octatetraene, 1,8-diphenyl- 1,8-Diphenyl-1,3,5,7-octatetraene 1,8-Diphenyloctatetraene 3029-40-1 Benzene, 1,1'-(1,3,5,7-octatetraene-1,8-diyl)bis- NSC10212