InChI=1S/C11H14O11S2/c12-8(2-4-11(13)14)5-7-1-3-9(21-23(15,16)17)10(6-7)22-24(18,19)20/h1,3,6,8,12H,2,4-5H2,(H,13,14)(H,15,16,17)(H,18,19,20)