ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C7H7N/c1-2-4-6-8-7-5-3-1/h1-7H/b2-1-,3-1?,4-2?,5-3-,6-4-,7-5?,8-6?,8-7?/file?format=sdf&get3d=True  -- InChI=1S/C7H7N/c1-2-4-6-8-7-5-3-1/h1-7H/b2-1-,3-1?,4-2?,5-3-,6-4-,7-5?,8-6?,8-7? could not be loaded.