ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/3C8H16O2.Sm/c3*1-3-5-6-7(4-2)8(9)10;/h3*7H,3-6H2,1-2H3,(H,9,10);/q;;; 3/p-3/file?format=sdf&get3d=True  -- InChI=1S/3C8H16O2.Sm/c3*1-3-5-6-7(4-2)8(9)10;/h3*7H,3-6H2,1-2H3,(H,9,10);/q;;; 3/p-3 could not be loaded.