ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C12H20O7/c1-4-17-9%2813%297-12%2816%2C11%2815%2919-6-3%298-10%2814%2918-5-2/h16H%2C4-8H2%2C1-3H3/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C12H20O7/c1-4-17-9%2813%297-12%2816%2C11%2815%2919-6-3%298-10%2814%2918-5-2/h16H%2C4-8H2%2C1-3H3 could not be loaded.