ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H13N3/c17-15-11-10-12-6-4-5-9-14(12)16(15)19-18-13-7-2-1-3-8-13/h1-11H,17H2/file?format=sdf&get3d=True -- InChI=1S/C16H13N3/c17-15-11-10-12-6-4-5-9-14(12)16(15)19-18-13-7-2-1-3-8-13/h1-11H,17H2 could not be loaded.