Analiza, Inc analyzed the mouse microsomal stability using an aliquot of a 10 mM DMSO stock solution of each test compound. Stock solutions were diluted with DMSO upon arrival to a concentration of 0.5 mM, and diluted again to with acetonitrile (ACN) to yield final solutions containing 0.1 mM of test compounds in 20/80% DMSO/ACN as described previously. The stability of the compound was calculated as the percent remaining of the parent compound at T = 30 min relative to the peak area at T= 0 min.