InChI=1S/C18H12O11S/c19-6-9-5-10-15-13(27-9)3-8(20)4-14(15)28-17(16(10)23)7-1-11(21)18(12(22)2-7)29-30(24,25)26/h1-5,19,21-23H,6H2,(H,24,25,26)