InChI=1S/C16H20O11/c1-25-9-4-6(7(17)5-10(18)19)2-3-8(9)26-16-13(22)11(20)12(21)14(27-16)15(23)24/h2-4,7,11-14,16-17,20-22H,5H2,1H3,(H,18,19)(H,23,24)