ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28CN1CCN%28CCOCCO%29CC1%29CN2c3ccccc3Sc4ccccc24/file?format=sdf&get3d=True  -- CC%28CN1CCN%28CCOCCO%29CC1%29CN2c3ccccc3Sc4ccccc24 could not be loaded.