ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C28H50O2/c1-19(2)7-6-8-20(3)24-11-12-25-23-10-9-21-17-22(30-18-29)13-15-27(21,4)26(23)14-16-28(24,25)5/h19-26,29H,6-18H2,1-5H3/t20-,21?,22?,23+,24-,25+,26+,27+,28-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C28H50O2/c1-19(2)7-6-8-20(3)24-11-12-25-23-10-9-21-17-22(30-18-29)13-15-27(21,4)26(23)14-16-28(24,25)5/h19-26,29H,6-18H2,1-5H3/t20-,21?,22?,23+,24-,25+,26+,27+,28-/m1/s1 could not be loaded.