ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H12N2/c1-9-7-5-8-4-2-3-6-10-8/h2-4%2C6%2C9H%2C5%2C7H2%2C1H3/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C8H12N2/c1-9-7-5-8-4-2-3-6-10-8/h2-4%2C6%2C9H%2C5%2C7H2%2C1H3 could not be loaded.