ObjectiveTo evaluated the efficacy of a topic al application of squaric acid dibutylester (SADBE) on alopecia areata.

Study on synthesis and corrosion inhibition of ester succinate-containing cationic Gemini surfactants

Study on synthesis of dibutyl succinate catalyzed by heteropoly acid;

Preparation of dibutyl succinate using acid activated bentonite as catalyst;

The optimum synthesis conditions affecting the yield of dibutyl succinate, such as the amount of catalyst, molecular ratio of n-butanol to succinate acid, amount of azeotropic agent used and reaction time, were investigated by the experiments according to uniform design.