3-{4-[(Oxolan-2-yl)methoxy]phenyl}-7-phenylbenzo[1,2-b:4,5-b’]difuran-2,6-dione
4,4’,4’’,4’’’-(Oxydimethylidyne)tetrakis(N,N-dimethylaniline)
4,4’-((2(Or 4)-methyl-1,3-phenylene)azo)bis(2(or 6)-methylbenzene-1,3-diamine)
4,4’-(1,3,4-Oxadiazole-2,5-diyl)dianiline
4,4’-(Oxydiethylene)bis(morpholine)
4,4’-Octahydro-1H-4,7-methanoindene-5,5-diyldiphenol
4,4’-Oxybis(2,6-dibromoaniline)
4,4’-Oxybis(benzenesulfohydrazide)
4-(3-Oxobutyl)phenyl isobutyrate
4-(3-Oxobutyl)phenyl isovalerate
4-(3-Oxobutyl)phenyl propionate