InChI=1/C20H18Cl2O4/c1-25-15-4-2-3-12(7-15)18-8-13(21)9-19(22)17(18)6-5-16-10-14(23)11-20(24)26-16/h2-9,14,16,23H,10-11H2,1H3/b6-5+/t14-,16-/m1/s1 F8D7332589D33A94