InChI=1S/C15H22O7S/c1-13(2)5-8-4-9(7-16)15(18)10(22-23(19,20)21)6-14(15,3)11(8)12(13)17/h4,7-8,10-12,17-18H,5-6H2,1-3H3,(H,19,20,21)