ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%28c1ccccc1%29CC%5BN%2B%5D%28Cc2ccccc2%29%28C%29C/file?format=sdf&get3d=True  -- O%28c1ccccc1%29CC%5BN%2B%5D%28Cc2ccccc2%29%28C%29C could not be loaded.