ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C20H18N4.ClH/c1-12-8-17-19%2810-15%2812%2921%2924%2814-6-4-3-5-7-14%2920-11-16%2822%2913%282%299-18%2820%2923-17%3B/h3-11H%2C1-2H3%2C%28H3%2C21%2C22%29%3B1H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C20H18N4.ClH/c1-12-8-17-19%2810-15%2812%2921%2924%2814-6-4-3-5-7-14%2920-11-16%2822%2913%282%299-18%2820%2923-17%3B/h3-11H%2C1-2H3%2C%28H3%2C21%2C22%29%3B1H could not be loaded.