InChI=1/C27H21N3O4/c31-26-21-13-19-18-8-4-5-9-20(18)28-24(19)25(17-10-11-22-23(12-17)34-15-33-22)30(21)27(32)29(26)14-16-6-2-1-3-7-16/h1-12,21,25,28H,13-15H2/t21-,25+/m1/s1 26955AC374B35735