A phenol with diverse biological activities; scavenges DPPH and hydroxyl radicals in cell-free assays (IC50s = 9.4 and 191 µM, respectively); reverses abscisic acid-induced inhibition of hypocotyl growth in A. caudatus seedlings from 1-100 µM; inhibits morpholine- and sodium nitrite-induced adenocarcinoma formation in mice at 21.8 g/kg; inhibits passive cutaneous anaphylaxis in mice at 50 mg/kg