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