ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H7ClN2/c1-4-2-6(8)5(7)3-9-4/h2-3H,1H3,(H2,8,9)/file?format=sdf&get3d=True  -- InChI=1S/C6H7ClN2/c1-4-2-6(8)5(7)3-9-4/h2-3H,1H3,(H2,8,9) could not be loaded.