4,4'-(ethoxymethylene)bis(methylbenzene)

9-[bis(4-methylphenyl)methylidene]xanthene

3',3'-bis(4-methylphenyl)spiro[fluorene-9,2'-thiirane]

1-methyl-4-[1,2,2-tris(4-methylphenyl)ethenyl]benzene

N-[bis(4-methylphenyl)methylideneamino]-1,1-bis(4-methylphenyl)methanimine