MARK-IN-2 inhibits MARK3 with an IC50 of 5 nM. MARK-IN-2 also inhibits MARK3 in primary cell culture of rat cortical neurons with an IC50 of 280 nM.MARK-IN-2 is a potent MARK inhibitor.?Inhibition of MARK represents a potentially attractive means of arresting neurofibrillary tangle pathology in Alzheimer's disease.

MARK-IN-2 has moderate terminal elimination half-life (t1/2=0.7 h, and 1 h for rat and dog) .Characterization of the i.v. pharmacokinetic properties of MARK-IN-2 in rat and dog reveals reasonable volumes of distribution but moderate to high clearance and short half-lives.