ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7 /t19-,20 ,22-,24 ,25-,26-,27-,28 /m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7 /t19-,20 ,22-,24 ,25-,26-,27-,28 /m0/s1 could not be loaded.