InChI=1S/C23H20O13/c1-31-15-4-9(22(30)36-23-18(27)16(25)17(26)20(35-23)21(28)29)2-8-3-12(34-19(8)15)10-5-13-14(6-11(10)24)33-7-32-13/h2-6,16-18,20,23-27H,7H2,1H3,(H,28,29)