InChI=1S/C16H20O12/c1-2-3-26-15(25)5-4-6(8(18)9(19)7(5)17)27-16-12(22)10(20)11(21)13(28-16)14(23)24/h4,10-13,16-22H,2-3H2,1H3,(H,23,24)