ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C18H12N2OS2/c21-17(16-9-4-10-22-16)19-13-6-3-5-12(11-13)18-20-14-7-1-2-8-15(14)23-18/h1-11H,(H,19,21)/file?format=sdf&get3d=True -- InChI=1S/C18H12N2OS2/c21-17(16-9-4-10-22-16)19-13-6-3-5-12(11-13)18-20-14-7-1-2-8-15(14)23-18/h1-11H,(H,19,21) could not be loaded.