ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C9H12/c1-8%282%299-6-4-3-5-7-9/h3-8H%2C1-2H3/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C9H12/c1-8%282%299-6-4-3-5-7-9/h3-8H%2C1-2H3 could not be loaded.