5-Formylfurfuryl esters from Duabanga grandiflora

► Isolation of 5-formylfurfuryl esters from stem bark of Duabanga grandiflora. ► Rare naturally-occurring 5-formylfurfuryl esters. ► Twenty compounds were obtained from the stem bark of D. grandiflora. ► These compounds could serve as a chemotaxonomic marker for Duabanga genus.