ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C18H23NO/c1-15-9-7-8-12-17%2815%2918%2820-14-13-19%282%293%2916-10-5-4-6-11-16/h4-12%2C18H%2C13-14H2%2C1-3H3/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C18H23NO/c1-15-9-7-8-12-17%2815%2918%2820-14-13-19%282%293%2916-10-5-4-6-11-16/h4-12%2C18H%2C13-14H2%2C1-3H3 could not be loaded.