ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C21H20O11.ClH/c22-7-16-17%2827%2918%2828%2919%2829%2921%2832-16%2931-15-6-10-12%2825%294-9%2823%295-14%2810%2930-20%2815%298-1-2-11%2824%2913%2826%293-8%3B/h1-6%2C16-19%2C21-22%2C27-29H%2C7H2%2C%28H3-%2C23%2C24%2C25%2C26%29%3B1H/t16-%2C17-%2C18%2B%2C19-%2C21-%3B/m1./s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C21H20O11.ClH/c22-7-16-17%2827%2918%2828%2919%2829%2921%2832-16%2931-15-6-10-12%2825%294-9%2823%295-14%2810%2930-20%2815%298-1-2-11%2824%2913%2826%293-8%3B/h1-6%2C16-19%2C21-22%2C27-29H%2C7H2%2C%28H3-%2C23%2C24%2C25%2C26%29%3B1H/t16-%2C17-%2C18%2B%2C19-%2C21-%3B/m1./s1 could not be loaded.