InChI=1S/C15H16O11/c16-7(17)4-2-5-1-3-6(9(19)8(5)18)25-15-12(22)10(20)11(21)13(26-15)14(23)24/h1-4,10-13,15,18-22H,(H,16,17)(H,23,24)