ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCC%28C%29C%28%3DO%29SCCNC%28%3DO%29CCNC%28%3DO%29%20C%28C%28C%29%28C%29COP%28%3DO%29%28O%29%20OP%28%3DO%29%28O%29OCC1C%28C%28C%28O1%29%20N2C%3DNC3%3DC2N%3DCN%3DC3N%29O%29OP%28%3DO%29%28O%29O%29O/file?format=sdf&get3d=True -- CCC%28C%29C%28%3DO%29SCCNC%28%3DO%29CCNC%28%3DO%29%20C%28C%28C%29%28C%29COP%28%3DO%29%28O%29%20OP%28%3DO%29%28O%29OCC1C%28C%28C%28O1%29%20N2C%3DNC3%3DC2N%3DCN%3DC3N%29O%29OP%28%3DO%29%28O%29O%29O could not be loaded.