InChI=1S/C16H10O10S/c17-6-3-8-10(5-1-2-23-16(5)24-8)14-11(6)13-9(26-27(20,21)22)4-7(18)12(13)15(19)25-14/h1-3,5,9,16-17H,4H2,(H,20,21,22)