InChI=1S/C15H16O11/c16-7-4-6(2-1-5(7)3-8(17)13(21)22)25-15-11(20)9(18)10(19)12(26-15)14(23)24/h1-2,4,9-12,15-16,18-20H,3H2,(H,21,22)(H,23,24)