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