InChI=1S/C22H20O11/c1-30-10-4-2-9(3-5-10)12-8-31-14-7-11(6-13(23)15(14)16(12)24)32-22-19(27)17(25)18(26)20(33-22)21(28)29/h2-8,17-20,22-23,25-27H,1H3,(H,28,29)/t17-,18-,19+,20-,22+/m0/s1