ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H6N2/c1-2-4-8-7%283-1%295-9-6-10-8/h1-6H/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C8H6N2/c1-2-4-8-7%283-1%295-9-6-10-8/h1-6H could not be loaded.