InChI=1S/C18H20O12/c1-18(2)4-7(19)5-3-6(8(20)10(22)13(5)30-18)16(27)29-17-12(24)9(21)11(23)14(28-17)15(25)26/h3,9,11-12,14,17,20-24H,4H2,1-2H3,(H,25,26)