ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C21H30O2/c1-16(2)7-5-8-17(3)9-6-10-18(4)11-12-19-15-20(22)13-14-21(19)23/h7,9,11,13-15,22-23H,5-6,8,10,12H2,1-4H3/file?format=sdf&get3d=True  -- InChI=1S/C21H30O2/c1-16(2)7-5-8-17(3)9-6-10-18(4)11-12-19-15-20(22)13-14-21(19)23/h7,9,11,13-15,22-23H,5-6,8,10,12H2,1-4H3 could not be loaded.