ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C48H40N4O8P4/c1-9-25-41(26-10-1)53-61(54-42-27-11-2-12-28-42)49-62(55-43-29-13-3-14-30-43,56-44-31-15-4-16-32-44)51-64(59-47-37-21-7-22-38-47,60-48-39-23-8-24-40-48)52-63(50-61,57-45-33-17-5-18-34-45)58-46-35-19-6-20-36-46/h1-40H/file?format=sdf&get3d=True  -- InChI=1S/C48H40N4O8P4/c1-9-25-41(26-10-1)53-61(54-42-27-11-2-12-28-42)49-62(55-43-29-13-3-14-30-43,56-44-31-15-4-16-32-44)51-64(59-47-37-21-7-22-38-47,60-48-39-23-8-24-40-48)52-63(50-61,57-45-33-17-5-18-34-45)58-46-35-19-6-20-36-46/h1-40H could not be loaded.