An inhibitor of mitochondrial complex II (IC50s = 0.87 and 9.3 μM for P. aeruginosa and rat mitochondria, respectively); inhibits the growth of T. mentagrophytes (IC50 = 0.3 μg/ml) via inhibition of succinate oxidation in the mitochondria; inhibits the growth of C. albicans (IC50s = 5-40 and 80-90 μg/ml for aerobic and anaerobic conditions, respectively)