ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/Co.3HNO3.3H2N/c;3*2-1(3)4;;;/h;3*(H,2,3,4);3*1H2/q+3;;;;3*-1/file?format=sdf&get3d=True  -- InChI=1S/Co.3HNO3.3H2N/c;3*2-1(3)4;;;/h;3*(H,2,3,4);3*1H2/q+3;;;;3*-1 could not be loaded.