4-[2-(3,4-dimethoxyphenyl)ethenyl]-1,2-dimethoxybenzene

1,1'-ethyne-1,2-diylbis(3,4-dimethoxybenzene)

1,2-bis(2-bromo-4,5-dimethoxyphenyl)ethane

3,4-二甲氧基苄醇

3,4-二甲氧基苯甲醛