InChI=1S/C15H18O8S/c1-15(17,9-22-24(18,19)20)6-5-11-7-10-3-4-14(16)23-13(10)8-12(11)21-2/h3-4,7-8,17H,5-6,9H2,1-2H3,(H,18,19,20)