1,1'-(1,1-Dimethyl-3-methylene-1,3-propanediyl)bisbenzene 4,4-Dimethyl-2,4-diphenyl-1-butene 6362-80-7 Benzene, 1,1'-(1,1-dimethyl-3-methylene-1,3-propanediyl)bis- EINECS 228-846-8