InChI=1S/C16H16O8S/c1-23-12-8-14(18)16(15(19)9-12)13(17)6-5-10-3-2-4-11(7-10)24-25(20,21)22/h2-4,7-9,18-19H,5-6H2,1H3,(H,20,21,22)