InChI=1S/C15H20O6S/c1-8-7-20-12-6-10-4-5-11(21-22(17,18)19)9(2)15(10,3)14(16)13(8)12/h7,10-11,14,16H,2,4-6H2,1,3H3,(H,17,18,19)