InChI=1S/C16H16O9S/c1-23-13-5-9(18)6-14-15(13)16(25-26(20,21)22)11(7-24-14)10-3-2-8(17)4-12(10)19/h2-6,11,16-19H,7H2,1H3,(H,20,21,22)