A cholesterol ester with anticancer activity; inhibits the growth of murine C1498 myeloid and L1210 lymphocytic leukemia cells at 50 and 150 μM, respectively; an ionizable anionic detergent commonly used to stabilize unilamellar vesicles and liposomes; has been used as an emulsifying agent in various vesicular drug delivery systems for anticancer drugs, antibiotics, and oligonucleotides and to solubilize various proteins as well as erythrocyte ghosts