ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C20H34O/c1-7-19(5,21)13-14-20(6)15(2)10-11-16-17(20)9-8-12-18(16,3)4/h7,11,15,17,21H,1,8-10,12-14H2,2-6H3/t15-,17+,19?,20+/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C20H34O/c1-7-19(5,21)13-14-20(6)15(2)10-11-16-17(20)9-8-12-18(16,3)4/h7,11,15,17,21H,1,8-10,12-14H2,2-6H3/t15-,17+,19?,20+/m0/s1 could not be loaded.