InChI=1S/C18H26O8/c1-7(2)10-5-9(19)6-11(8(3)4)15(10)25-18-14(22)12(20)13(21)16(26-18)17(23)24/h5-8,12-14,16,18-22H,1-4H3,(H,23,24)/t12-,13-,14+,16-,18+/m0/s1