ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C9H16Cl4/c1-2-3-4-5-6-8(10)7-9(11,12)13/h8H,2-7H2,1H3/file?format=sdf&get3d=True  -- InChI=1S/C9H16Cl4/c1-2-3-4-5-6-8(10)7-9(11,12)13/h8H,2-7H2,1H3 could not be loaded.