ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C12H14N2O2/c13-11%2815%298-14-7-10%286-12%2814%2916%299-4-2-1-3-5-9/h1-5%2C10H%2C6-8H2%2C%28H2%2C13%2C15%29/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C12H14N2O2/c13-11%2815%298-14-7-10%286-12%2814%2916%299-4-2-1-3-5-9/h1-5%2C10H%2C6-8H2%2C%28H2%2C13%2C15%29 could not be loaded.