InChI=1S/C15H22O7S/c1-12(2)5-10-13(3)6-11(22-23(19,20)21)15(13,18)9(7-16)4-14(10,17)8-12/h4,7,10-11,17-18H,5-6,8H2,1-3H3,(H,19,20,21)