InChI=1S/C22H26O15/c23-9-3-1-8(5-10(9)24)2-4-13(27)35-17-11(25)6-22(34,7-12(17)26)21(33)37-20-16(30)14(28)15(29)18(36-20)19(31)32/h1-5,11-12,14-18,20,23-26,28-30,34H,6-7H2,(H,31,32)/b4-2+