InChI=1S/C21H14O16S/c22-10-2-8(3-11(23)16(10)26)20(30)35-14-6-9(4-12(24)17(14)27)21(31)36-15-5-7(19(28)29)1-13(25)18(15)37-38(32,33)34/h1-6,22-27H,(H,28,29)(H,32,33,34)