InChI=1S/C15H22O6S/c1-9(2)13-4-5-15(14(13)21-22(18,19)20)10(3)6-12(17)7-11(15)8-16/h7,10,13-14,16H,1,4-6,8H2,2-3H3,(H,18,19,20)