InChI=1S/C15H20O11/c1-5-10(19)14(6(2)24-5)26-15-13(22)12(21)11(20)7(25-15)4-23-9(18)3-8(16)17/h5,7,11-13,15,20-22H,3-4H2,1-2H3,(H,16,17)