InChI=1S/C18H22O6S/c1-18-9-8-11-10-4-6-15(24-25(21,22)23)17(20)13(10)3-2-12(11)14(18)5-7-16(18)19/h4,6,11-12,14,20H,2-3,5,7-9H2,1H3,(H,21,22,23)/t11?,12?,14?,18-/m1/s1