InChI=1S/C15H22O7S/c1-8-11(22-23(18,19)20)4-3-10-5-12-13(9(6-16)7-21-12)14(17)15(8,10)2/h7-8,10-11,14,16-17H,3-6H2,1-2H3,(H,18,19,20)