InChI=1S/C14H18O8S/c1-8(7-22-23(19,20)21)3-4-11-12(15)6-5-10(13(11)16)9(2)14(17)18/h3,5-6,9,15-16H,4,7H2,1-2H3,(H,17,18)(H,19,20,21)