InChI=1/C19H14O5S/c20-15-10-16(13-6-8-14(9-7-13)18(21)22)24-19(23)17(15)25-11-12-4-2-1-3-5-12/h1-10,20H,11H2,(H,21,22)/p-2/fC19H12O5S/h20h/q-2 6DD03332111D0206