CJ-13,610 (hydrochloride) is an orally active and potent nonredox-type 5-lipoxygenase inhibitor with an IC 50 value of 0.07 μM. CJ-13,610 (hydrochloride) competes with activating LOOH at a regulatory LOOH-binding site with high affinity, thereby preventing 5-lipoxygenase catalysis. CJ-13,610 (hydrochloride) is promising for research of diseases related to elevated levels of 5-lipoxygenase such as inflammatory reactions, allergic asthma, various types of cancer and atherosclerosis.