ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C10H16N2/c1-11%282%299-5-7-10%288-6-9%2912%283%294/h5-8H%2C1-4H3/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C10H16N2/c1-11%282%299-5-7-10%288-6-9%2912%283%294/h5-8H%2C1-4H3 could not be loaded.