InChI=1/C20H20O6/c21-12-3-1-4-13(22)19(12)18(20-14(23)5-2-6-15(20)24)11-7-8-16-17(9-11)26-10-25-16/h7-9,18,21,23H,1-6,10H2/p-2/fC20H18O6/h21,23h/q-2	5B26A1A3B2E15D32