4-butoxy-benzoic aci 2-(ethyl(2-hydroxyethyl)amino)ethyl ester |
4-butoxybenzoic acid 2-(ethyl(2-hydroxyethyl)amino)ethyl ester |
beta-(n-ethyl-n-beta-hydroxyethylamino)ethyl 4-n-butoxybenzoate |
4-butoxy-benzoic aci2-(ethyl(2-hydroxyethyl)amino)ethyl ester |