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