InChI=1S/C18H18N2O10/c1-8-7-30-16(19-12(8)15(25)26)18(29-2,17(27)28)20-13(22)11(14(23)24)9-3-5-10(21)6-4-9/h3-6,11,16,21H,1,7H2,2H3,(H,20,22)(H,23,24)(H,25,26)(H,27,28)/t11-,16+,18+/m0/s1