InChI=1/C21H19ClO2/c1-13-19(24)8-9-21(11-14-2-4-16(22)5-3-14)12-15-10-17(23)6-7-18(15)20(13)21/h2-7,10,23H,8-9,11-12H2,1H3/t21-/m0/s1 43A05AB5A68B2A12