InChI=1S/C19H18O11/c1-26-15-9-2-3-27-10(9)5-7-4-8(29-18(25)11(7)15)6-28-19-14(22)12(20)13(21)16(30-19)17(23)24/h2-5,12-14,16,19-22H,6H2,1H3,(H,23,24)