InChI=1/C19H16O3S/c1-13-6-5-9-15(10-13)17-11-16(20)18(19(21)22-17)23-12-14-7-3-2-4-8-14/h2-11,20H,12H2,1H3/p-1/fC19H15O3S/h20h/q-1 CA2617C853A5D67D