ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C16H10O6/c17-9-3-1-8%282-4-9%2910-6-20-11-5-12-16%2822-7-21-12%2915%2819%2913%2811%2914%2810%2918/h1-6%2C17%2C19H%2C7H2/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C16H10O6/c17-9-3-1-8%282-4-9%2910-6-20-11-5-12-16%2822-7-21-12%2915%2819%2913%2811%2914%2810%2918/h1-6%2C17%2C19H%2C7H2 could not be loaded.