InChI=1S/C15H20O8S/c1-11(2)7-13(16)8-15(18,10-23-24(19,20)21)5-3-14(17)12-4-6-22-9-12/h4,6-7,9,18H,3,5,8,10H2,1-2H3,(H,19,20,21)