InChI=1/C15H11ClN2O2S/c16-9-6-7-12-11(8-9)14(13(18-12)15(17)19)21(20)10-4-2-1-3-5-10/h1-8,18H,(H2,17,19)/t21-/m1/s1/f/h17H2 2467EDA9FDE40C39