InChI=1S/C18H22O12/c1-18(2,27)8-4-5-12(28-8)6(15(23)24)3-7(19)13(5)29-17-11(22)9(20)10(21)14(30-17)16(25)26/h3,8-11,14,17,19-22,27H,4H2,1-2H3,(H,23,24)(H,25,26)