ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C12H16N2/c1-2-10%2813%297-9-8-14-12-6-4-3-5-11%289%2912/h3-6%2C8%2C10%2C14H%2C2%2C7%2C13H2%2C1H3/file?format=sdf&get3d=True  -- InChI%3DInChI%26%2361%3B1S/C12H16N2/c1-2-10%2813%297-9-8-14-12-6-4-3-5-11%289%2912/h3-6%2C8%2C10%2C14H%2C2%2C7%2C13H2%2C1H3 could not be loaded.