ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C19H18N2O3/c22-15-4-1-13(2-5-15)3-8-19(24)20-10-9-14-12-21-18-11-16(23)6-7-17(14)18/h1-8,11-12,21-23H,9-10H2,(H,20,24)/b8-3+/file?format=sdf&get3d=True -- InChI=1S/C19H18N2O3/c22-15-4-1-13(2-5-15)3-8-19(24)20-10-9-14-12-21-18-11-16(23)6-7-17(14)18/h1-8,11-12,21-23H,9-10H2,(H,20,24)/b8-3+ could not be loaded.