The methyl cinnamate, ethyl cinnamate, n-propyl cinnamate, n-butyl cinnamate, iso-butyl cinnamate, n-amyl cinnamate and iso-amyl cinnamate were synthesis by esterification of cinnamic acid and various alcohols in the presence of sodium bisulfate monohydrate catalyst. The properties of the cinnamates, such as boiling point (or melting point), elementary component, refract...