An antioxidant and a selective lipoxygenase (LOX) inhibitor (IC50=200nM, 30µM and 30µM for 5-LOX, 12-LOX and 15-LOX, respectively) over cyclooxygenase (IC50=100µM)

Also shown to inhibit platelet-derived growth factor (PDGF)-stimulated DNA synthesis in Swiss 3T3 cells. A powerful hydroxy radical quencher.