Tetracaine HCL is synthesized from 4-butylaminobenzoic acid. The ethyl ester is formed through an acid-catalyzed esterification reaction. Base-catalyzed transesterification is achieved by boiling the ethyl ester of 4-butylaminobenzoic acid with excess 2-dimethylaminoethanol in the presence of a small amount of sodium ethoxide.
Tetracaine, also known as Amethocalne, Dlcalne, Pontocaine, Decicaine, is a kind of Local Anesthetic. It is highly soluable in Non-polar solvent, and combines with Plasma protein by 85%.