InChI=1/C18H14O8/c1-6-3-10(20)8(4-19)15-11(6)18(23)26-16-13(21)12-9(5-24-17(12)22)7(2)14(16)25-15/h3,19-21H,4-5H2,1-2H3 16FA3B8ABF059F9C