ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C20H42O6/c1-20(2)8-6-4-3-5-7-10-22-12-14-24-16-18-26-19-17-25-15-13-23-11-9-21/h20-21H,3-19H2,1-2H3/file?format=sdf&get3d=True  -- InChI=1S/C20H42O6/c1-20(2)8-6-4-3-5-7-10-22-12-14-24-16-18-26-19-17-25-15-13-23-11-9-21/h20-21H,3-19H2,1-2H3 could not be loaded.