InChI=1S/C18H18O11S/c19-12-4-1-11(8-15(12)29-30(25,26)27)9-16(18(23)24)28-14-5-2-10(7-13(14)20)3-6-17(21)22/h1-2,4-5,7-8,16,19-20H,3,6,9H2,(H,21,22)(H,23,24)(H,25,26,27)