1dinor-12-oxo-Phytodienoic acid (dinor-OPDA) serves as an intermediate in the biosynthesis of jasmonic acid from hexadecatrienoic acid, playing a crucial role in the jasmonate pathway in plants. This pathway oxygenates and modifies certain unsaturated fatty acids to produce plant hormones critical for processes such as senescence, flower development, mechanotransduction, and response to herbivory. Additionally, dinor-OPDA can be incorporated into glycerolipids and galactolipids, including specific arabidopsides.