InChI=1S/C21H28O12/c1-29-10-6-11(31-15(23)8-10)7-12(22)9-3-4-13(30-2)14(5-9)32-21-18(26)16(24)17(25)19(33-21)20(27)28/h3-5,10-12,16-19,21-22,24-26H,6-8H2,1-2H3,(H,27,28)