InChI=1S/C14H18O8S/c1-8-3-10(15)7-11(21-8)4-9-5-12(16)14(13(6-9)20-2)22-23(17,18)19/h5-6,8,11,16H,3-4,7H2,1-2H3,(H,17,18,19)