ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C12H20O2/c1-9-5-7-11%288-6-9%2912%283%2C4%2914-10%282%2913/h5%2C11H%2C6-8H2%2C1-4H3/file?format=sdf&get3d=True -- InChI%3DInChI%26%2361%3B1S/C12H20O2/c1-9-5-7-11%288-6-9%2912%283%2C4%2914-10%282%2913/h5%2C11H%2C6-8H2%2C1-4H3 could not be loaded.