Disclosed is (4-Methoxy-phenyl)-methyl-(2-methyl-quinazolin-4-yl)-amine hydrochloride effective as a cytotoxic agent. (4-Methoxy-phenyl)-methyl-(2-methyl-quinazolin-4-yl)-amine hydrochloride is useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs, and in particular to its use in treating brain cancer.