InChI=1S/C30H18O11/c31-16-5-1-3-11-19(13-7-10(29(38)39)8-18(33)23(13)26(35)21(11)16)20-12-4-2-6-17(32)22(12)27(36)24-14(20)9-15(30(40)41)25(34)28(24)37/h1-9,19-20,31-34,37H,(H,38,39)(H,40,41)/t19-,20-/m1/s1