InChI=1S/C23H20O12/c24-10-4-1-8(2-5-10)13-15(26)14(17(28)16(13)27)9-3-6-11(25)12(7-9)34-23-20(31)18(29)19(30)21(35-23)22(32)33/h1-7,13,18-21,23-25,28-31H,(H,32,33)