Nordihydroguaretic acid

Nordihydroguaiaretic acid is a tetrol with butane substituted at positions 2 and 3 by 3,4-dihydroxybenzyl groups. Masoprocol, the meso-form found in the leaves of the creosote bush (Larrea divaricata), is a potent lipoxygenase inhibitor. It functions as an antioxidant, plant metabolite, ferroptosis inhibitor, and geroprotector. It belongs to the classes of catechols, tetrols, and lignans.