ERROR opening https://cactus.nci.nih.gov/chemical/structure/OC%5BC%40H%5D1O%5BC%40%40H%5D%28OC%28C/file?format=sdf&get3d=True  -- OC%5BC%40H%5D1O%5BC%40%40H%5D%28OC%28C could not be loaded.