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