InChI=1S/C41H41N7O4/c1-24-32(5-3-7-34(24)40-46-36-17-26(15-30(18-42)38(36)52-40)20-47-13-10-29(22-47)41(50)51)33-6-4-8-35(25(33)2)45-39-37-28(9-12-43-39)16-27(19-44-37)21-48-14-11-31(49)23-48/h3-9,12,15-19,29,31,42,49H,10-11,13-14,20-23H2,1-2H3,(H,43,45)(H,50,51)/b42-18+/t29-,31-/m1/s1