ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc%28ccc1O%29S%28%3DO%29%28%3DO%29c2ccc%28cc2%29O/file?format=sdf&get3d=True  -- c1cc%28ccc1O%29S%28%3DO%29%28%3DO%29c2ccc%28cc2%29O could not be loaded.