1,1'-(1,3,3-Trimethylprop-1-ene-1,3-diyl)dibenzene 2-Pentene, 4-methyl-2,4-diphenyl- 6258-73-7 Benzene, 1,1'-(1,3,3-trimethyl-1-propene-1,3-diyl)bis- EINECS 228-396-2 NSC 54387