ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H9NO.I2/c1-2-7-5-3-4-6(7)8/file?format=sdf&get3d=True  -- InChI=1S/C6H9NO.I2/c1-2-7-5-3-4-6(7)8 could not be loaded.