ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1%28%5BC%40%40H%5D%28C%28c2ccccc2%29%3DO%29O%29ccccc1/file?format=sdf&get3d=True -- c1%28%5BC%40%40H%5D%28C%28c2ccccc2%29%3DO%29O%29ccccc1 could not be loaded.