InChI=1S/C16H24O8/c17-9-7-5-3-1-2-4-6-8-10-23-16-13(20)11(18)12(19)14(24-16)15(21)22/h2-6,8,11-14,16-20H,1,7,9-10H2,(H,21,22)/b4-2-,5-3-,8-6+