ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C20H34O2/c21-20%2822%2918-12-10-8-6-4-2-1-3-5-7-9-11-15-19-16-13-14-17-19/h1-2%2C13%2C16%2C19H%2C3-12%2C14-15%2C17-18H2%2C%28H%2C21%2C22%29/b2-1%20/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C20H34O2/c21-20%2822%2918-12-10-8-6-4-2-1-3-5-7-9-11-15-19-16-13-14-17-19/h1-2%2C13%2C16%2C19H%2C3-12%2C14-15%2C17-18H2%2C%28H%2C21%2C22%29/b2-1%20 could not be loaded.