InChI=1S/C15H22O7S/c1-7-6-21-11-5-9-4-10(16)13(17)8(2)15(9,3)14(12(7)11)22-23(18,19)20/h6,8-10,13-14,16-17H,4-5H2,1-3H3,(H,18,19,20)