4-Methyl-OPDA (4-methyl-12-oxo-phytodienoic acid) is a plant-derived compound involved in plant signaling, specifically in response to stress and development. It is a methylated derivative of OPDA (12-oxo-phytodienoic acid), a precursor in the biosynthesis of jasmonic acid, which plays a crucial role in plant defense mechanisms and stress responses.

Chemical Information:

IUPAC Name: 4-methyl-12-oxo-2E,4E-dodecadienoic acid

4-Methyl-OPDA is typically studied in the context of plant biochemistry and the jasmonate signaling pathway. It is involved in regulating various plant responses, including defense against herbivory and pathogen attack, as well as controlling growth and development processes.