InChI=1S/C14H14O9S2/c15-12-5-3-10(4-6-12)1-2-11-7-13(22-24(16,17)18)9-14(8-11)23-25(19,20)21/h3-9,15H,1-2H2,(H,16,17,18)(H,19,20,21)