InChI=1S/C16H16O10/c1-23-12-6-4-5-24-8(6)3-2-7(12)15(22)26-16-11(19)9(17)10(18)13(25-16)14(20)21/h2-5,9-11,13,16-19H,1H3,(H,20,21)