InChI=1S/C15H16O8S/c16-10(6-13-14(18)7-11(17)8-15(13)19)4-9-2-1-3-12(5-9)23-24(20,21)22/h1-3,5,7-8,10,16-19H,4,6H2,(H,20,21,22)