| 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 |
