ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C34H28N4/c1-3-10-33-29(8-1)31-16-18-37(33)23-27-6-5-7-28(20-27)24-38-19-17-32(30-9-2-4-11-34(30)38)36-22-26-14-12-25(13-15-26)21-35-31/h1-20H,21-24H2/p+2/file?format=sdf&get3d=True  -- InChI=1S/C34H28N4/c1-3-10-33-29(8-1)31-16-18-37(33)23-27-6-5-7-28(20-27)24-38-19-17-32(30-9-2-4-11-34(30)38)36-22-26-14-12-25(13-15-26)21-35-31/h1-20H,21-24H2/p+2 could not be loaded.