ERROR opening https://cactus.nci.nih.gov/chemical/structure/c3ccccc3COc%28cc4%29cc2c4%5BnH%5Dc%28cnc1C%28%3DO%29OCC%29c2c1COC/file?format=sdf&get3d=True  -- c3ccccc3COc%28cc4%29cc2c4%5BnH%5Dc%28cnc1C%28%3DO%29OCC%29c2c1COC could not be loaded.