CS-6253 TFA is the TFA salt form of CS-6253. CS-6253 TFA is an agonist for ATP-binding cassette 1 (ABCA 1). CS-6253 TFA improves the amyloid-β42/40 ratio, and affects lipoprotein metabolism in plasma. CS-6253 TFA generates cholesterol-rich high-density lipoprotein (HDL) particles, and induces the release of microparticles.