InChI=1S/C19H26O12/c20-6-9-15(30-19-13(24)10(21)11(22)16(31-19)17(26)27)12(23)14(25)18(29-9)28-7-8-4-2-1-3-5-8/h1-5,9-16,18-25H,6-7H2,(H,26,27)