ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C18H14N4.ClH/c19-12-10-14(20)18-17(11-12)22(13-6-2-1-3-7-13)16-9-5-4-8-15(16)21-18;/h1-11H,(H3,19,20);1H/file?format=sdf&get3d=True -- InChI=1S/C18H14N4.ClH/c19-12-10-14(20)18-17(11-12)22(13-6-2-1-3-7-13)16-9-5-4-8-15(16)21-18;/h1-11H,(H3,19,20);1H could not be loaded.