ERROR opening https://cactus.nci.nih.gov/chemical/structure/Clc3cccc%28N2CCN%28CCc1nnc%28c1%29C%29CC2%29c3/file?format=sdf&get3d=True  -- Clc3cccc%28N2CCN%28CCc1nnc%28c1%29C%29CC2%29c3 could not be loaded.