ERROR opening https://cactus.nci.nih.gov/chemical/structure/FC%28F%29%28F%29c3cc%28Oc1c%28OC%29cc%28NC%28C%29CCCN%29c2nc%28OC%29cc%28c12%29C%29ccc3/file?format=sdf&get3d=True -- FC%28F%29%28F%29c3cc%28Oc1c%28OC%29cc%28NC%28C%29CCCN%29c2nc%28OC%29cc%28c12%29C%29ccc3 could not be loaded.