InChI=1S/C15H22O9S/c1-7-3-9-14(4-8(7)16,5-23-25(19,20)21)13(2)11(18)10(17)12(24-9)15(13)6-22-15/h3,8-12,16-18H,4-6H2,1-2H3,(H,19,20,21)