InChI=1/C21H20Cl2O3/c1-2-13-4-3-5-14(8-13)19-9-15(22)10-20(23)18(19)7-6-17-11-16(24)12-21(25)26-17/h3-10,16-17,24H,2,11-12H2,1H3/b7-6+/t16-,17+/m1/s1 1DA27CCC73BFDD80