ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C38H38N6O4/c45-35(25-43-15-19-47-20-16-43)39-29-11-13-33-31(23-29)37(27-7-3-1-4-8-27)41-34-14-12-30(40-36(46)26-44-17-21-48-22-18-44)24-32(34)38(42-33)28-9-5-2-6-10-28/h1-14,23-24H,15-22,25-26H2,(H,39,45)(H,40,46)/b37-31-,38-32-,41-34+,41-37?,42-33+,42-38?/file?format=sdf&get3d=True  -- InChI=1S/C38H38N6O4/c45-35(25-43-15-19-47-20-16-43)39-29-11-13-33-31(23-29)37(27-7-3-1-4-8-27)41-34-14-12-30(40-36(46)26-44-17-21-48-22-18-44)24-32(34)38(42-33)28-9-5-2-6-10-28/h1-14,23-24H,15-22,25-26H2,(H,39,45)(H,40,46)/b37-31-,38-32-,41-34+,41-37?,42-33+,42-38? could not be loaded.