ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DCC2CCC3C%28CCCC3%28C24CCC1C4%29C%29%28C%29C/file?format=sdf&get3d=True  -- CC1%3DCC2CCC3C%28CCCC3%28C24CCC1C4%29C%29%28C%29C could not be loaded.