InChI=1S/C24H20O10/c25-9-19-23(10-1-3-13(27)14(28)5-10)33-17-6-11(2-4-16(17)32-19)24-22(31)21(30)20-15(29)7-12(26)8-18(20)34-24/h1-8,19,22-29,31H,9H2/t19-,22+,23-,24-/m1/s1