InChI=1S/C17H18O10/c1-5-4-6-7(18)2-3-8(19)9(6)14(10(5)20)26-17-13(23)11(21)12(22)15(27-17)16(24)25/h2-4,11-13,15,17-23H,1H3,(H,24,25)