The novel ester product (thymyl arachidate, or 2-isopropyl-5-methylphenyl icosanoate) formed by refluxing thymol and arachidic acid in acetonitrile with EDC.HCl and DMAP. The acid was not particularly soluble in the reaction mixture until heated and stirred vigorously, and the reaction solution was clear during reflux with the product falling out of solution as it cooled. Upon use of a Rotavapor with a waterbath at 40 ºC to dry the product after workup, the product was a clear oil which turned cloudy and then solidified as a white wax when left to return to room temperature and pressure.