InChI=1S/C15H22O7S/c1-8-4-5-10(16)11-12(22-23(18,19)20)15(7-14(8,11)3)9(2)6-21-13(15)17/h8,10-12,16H,2,4-7H2,1,3H3,(H,18,19,20)