ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C20H38O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20%2821%2922/h11-12H%2C2-10%2C13-19H2%2C1H3%2C%28H%2C21%2C22%29/b12-11-/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C20H38O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20%2821%2922/h11-12H%2C2-10%2C13-19H2%2C1H3%2C%28H%2C21%2C22%29/b12-11- could not be loaded.