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