ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H10N3/c1-11(2)8-5-3-7(10-9)4-6-8/h3-6H,1-2H3/q+1/file?format=sdf&get3d=True  -- InChI=1S/C8H10N3/c1-11(2)8-5-3-7(10-9)4-6-8/h3-6H,1-2H3/q+1 could not be loaded.