InChI: | InChI=1/C52H52N6/c1-3-57-45-25-13-11-21-39(45)37-19-7-9-23-41(37)51(57)43-29-27-35(47-49(43)55-33-15-31-53-47)17-5-6-18-36-28-30-44(50-48(36)54-32-16-34-56-50)52-42-24-10-8-20-38(42)40-22-12-14-26-46(40)58(52)4-2/h7-14,19-30,53-54H,3-6,15-18,31-34H2,1-2H3/p+2 |