ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C2Cl2F4/c3-1(5,6)2(4,7)8/file?format=sdf&get3d=True -- InChI=1S/C2Cl2F4/c3-1(5,6)2(4,7)8 could not be loaded.