The invention relates to a compound, 1,3-diolein-2-linolein, having a structure of formula (I), which is prepared by a process comprising the preparation of Coix seed oil from the Coix seed powder the preliminary separation of 1,3-diolein-2-linolein and the double-separation of 1,3-diolein-2-linolein. The invention also relates to pharmaceutical preparations of 1,3-diolein-2-linolein, and the use of this compound and pharmaceutical preparations thereof in the treatment of tumors.
