InChI=1S/C19H14O12S/c20-15-12-6-5-11(30-17(19(24)25)16(21)18(22)23)7-14(12)29-8-13(15)9-1-3-10(4-2-9)31-32(26,27)28/h1-8,16-17,21H,(H,22,23)(H,24,25)(H,26,27,28)