InChI=1S/C16H22O8/c1-8-3-5-9(6-4-8)16(2,7-17)24-15-12(20)10(18)11(19)13(23-15)14(21)22/h3-6,10-13,15,17-20H,7H2,1-2H3,(H,21,22)