ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%28C%3DC%28O1%29C2%3DCC%3DCS2%29C%28%3DO%29O/file?format=sdf&get3d=True -- CC1%3DC%28C%3DC%28O1%29C2%3DCC%3DCS2%29C%28%3DO%29O could not be loaded.