InChI=1S/C19H14O10S/c20-19-11-4-15-16(27-8-26-15)6-14(11)25-7-17(19)28-13-5-12-9(1-2-24-12)3-10(13)18(19)29-30(21,22)23/h1-6,17-18,20H,7-8H2,(H,21,22,23)