ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C12H18/c1-7-2-11-3-8%281%2910-4-9%287%295-12%2811%296-10/h7-12H%2C1-6H2/file?format=sdf&get3d=True -- InChI%3DInChI%26%2361%3B1S/C12H18/c1-7-2-11-3-8%281%2910-4-9%287%295-12%2811%296-10/h7-12H%2C1-6H2 could not be loaded.