InChI=1S/C18H22O10/c1-3-4-9-5-6-10(11(7-9)25-2)27-12(19)8-26-18-15(22)13(20)14(21)16(28-18)17(23)24/h3-7,13-16,18,20-22H,8H2,1-2H3,(H,23,24)/b4-3-