ERROR opening https://cactus.nci.nih.gov/chemical/structure/Fc2ccccc2C1%3DNC%28C%29c3c%28C%28%3DO%29OCC%29ncn3-c%28cc4%29c1cc4C%23C/file?format=sdf&get3d=True  -- Fc2ccccc2C1%3DNC%28C%29c3c%28C%28%3DO%29OCC%29ncn3-c%28cc4%29c1cc4C%23C could not be loaded.