Highlights Easy obtention of Cu 3 (MoO 4 ) 2 (OH) 2 by sonochemistry route at room temperature. Urchin-like morphology was obtained in aqueous solution using the sonochemistry method for copper molybdate. High conversion rate in the esterification of oleic acid using the Cu 3 (MoO 4 ) 2 (OH) 2 as a solid catalyst.