InChI=1/C27H18O7S/c28-25-15-21(13-14-23(25)27(29)30)35(31,32)34-20-11-9-18(10-12-20)17-5-7-19(8-6-17)24-16-33-26-4-2-1-3-22(24)26/h1-16,28H,(H,29,30)/p-1/fC27H17O7S/q-1 B73E4875D2695266