ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%28C%3DCC%28%3DC1%29OP%28%3DS%29%28OC%29OC%29SC/file?format=sdf&get3d=True  -- CC1%3DC%28C%3DCC%28%3DC1%29OP%28%3DS%29%28OC%29OC%29SC could not be loaded.