ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C12H16N2O/c1-14%282%296-5-9-8-13-12-4-3-10%2815%297-11%289%2912/h3-4%2C7-8%2C13%2C15H%2C5-6H2%2C1-2H3/file?format=sdf&get3d=True  -- InChI%3DInChI%26%2361%3B1S/C12H16N2O/c1-14%282%296-5-9-8-13-12-4-3-10%2815%297-11%289%2912/h3-4%2C7-8%2C13%2C15H%2C5-6H2%2C1-2H3 could not be loaded.