ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C16H14O6/c1-21-9-5-12%2819%2916-13%2820%297-14%2822-15%2816%296-9%298-2-3-10%2817%2911%2818%294-8/h2-6%2C14%2C17-19H%2C7H2%2C1H3/t14-/m0/s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C16H14O6/c1-21-9-5-12%2819%2916-13%2820%297-14%2822-15%2816%296-9%298-2-3-10%2817%2911%2818%294-8/h2-6%2C14%2C17-19H%2C7H2%2C1H3/t14-/m0/s1 could not be loaded.