ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C3F8/c4-1(5,2(6,7)8)3(9,10)11/file?format=sdf&get3d=True  -- InChI=1S/C3F8/c4-1(5,2(6,7)8)3(9,10)11 could not be loaded.