3-ethoxy-4-butoxy-benzoic acid-(2-diethylamino-ethyl ester)
3-ethoxy-4-butoxy-benzoyl chloride
5-(4-butoxy-3-ethoxyphenyl)thiazolidine-2,4-dione
5-(4-Butoxy-3-ethoxy-phenyl)-2-imino-thiazolidin-4-one
3-Aethoxy-4-butyloxy-benzaldehyd-thiosemicarbazon