InChI=1/C20H18O3S/c1-13(2)15-10-6-7-11-18(15)24-19-16(21)12-17(23-20(19)22)14-8-4-3-5-9-14/h3-13,21H,1-2H3/p-1/fC20H17O3S/h21h/q-1 00560E58C54AC395