InChI=1S/C17H20O13/c18-7-3-1-6(2-4-7)5-17(28,16(26)27)12(22)14(25)30-15-10(21)8(19)9(20)11(29-15)13(23)24/h1-4,8-12,15,18-22,28H,5H2,(H,23,24)(H,26,27)