A naphthoquinone with diverse biological activities; exhibits fungicidal activity against ten agriculturally relevant plant fungi in vitro (MICs = 5-20 mg/L) and in infected wheat and barley plants (EC50s = 2-20 mg/L); reduces the growth of T. cruzi epimastigotes (IC50 = 4.01 μM); a substrate of NQO1 that increases production of ROS and induces cell death of A549 lung carcinoma cells (IC50 = 6.1 μM); increases intracellular NAD+ and prevents cisplatin-induced inflammatory cytokine production and small intestinal damage in mice when administered at a dose of 20 mg/kg per day for 4 days