ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H18O2/c1-8(2)10-7-11(13-4)9(3)6-12(10)14-5/h6-8H,1-5H3/file?format=sdf&get3d=True  -- InChI=1S/C12H18O2/c1-8(2)10-7-11(13-4)9(3)6-12(10)14-5/h6-8H,1-5H3 could not be loaded.