ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/Cl2HN/c1-3-2/h3H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/Cl2HN/c1-3-2/h3H could not be loaded.