ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H9N/c1-2-4-8(5-3-1)9-6-7-9/h1-5H,6-7H2/file?format=sdf&get3d=True  -- InChI=1S/C8H9N/c1-2-4-8(5-3-1)9-6-7-9/h1-5H,6-7H2 could not be loaded.