InChI=1S/C27H30O18S/c28-7-15-19(33)21(35)22(36)27(44-15)43-14-6-12(32)17-11(31)5-13(9-1-3-10(30)4-2-9)41-24(17)18(14)25-23(37)26(45-46(38,39)40)20(34)16(8-29)42-25/h1-6,15-16,19-23,25-30,32-37H,7-8H2,(H,38,39,40)