InChI=1S/C16H20O12/c1-5(17)4-26-15(25)6-2-7(18)12(8(19)3-6)27-16-11(22)9(20)10(21)13(28-16)14(23)24/h2-3,5,9-11,13,16-22H,4H2,1H3,(H,23,24)