InChI=1/C18H20N2O2S/c23-18(19-13-17-7-4-12-21-17)20-14-8-10-16(11-9-14)22-15-5-2-1-3-6-15/h1-3,5-6,8-11,17H,4,7,12-13H2,(H2,19,20,23)/t17-/m1/s1/f/h19-20H 1D029F2A7C04222A