ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C18H30O3/c1-2-3-4-5-6-7-8-11-14-17(19)15-12-9-10-13-16-18(20)21/h7-8,17,19H,2-6,9-10,12-13,15-16H2,1H3,(H,20,21)/b8-7 /file?format=sdf&get3d=True -- InChI=1S/C18H30O3/c1-2-3-4-5-6-7-8-11-14-17(19)15-12-9-10-13-16-18(20)21/h7-8,17,19H,2-6,9-10,12-13,15-16H2,1H3,(H,20,21)/b8-7 could not be loaded.