InChI=1S/C17H18O10S/c1-3-4-8-5-11(19)24-10-6-9(18)13-14(12(8)10)25-16-15(13)26-27-17(16,2)7-23-28(20,21)22/h5-6,15-16,18H,3-4,7H2,1-2H3,(H,20,21,22)