ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C20H24N6O4/c1-30-19-16(10-22-20(21)24-19)18(27)23-13-8-14-6-7-15(9-13)25(14)11-12-4-2-3-5-17(12)26(28)29/h2-5,10,13-15H,6-9,11H2,1H3,(H,23,27)(H2,21,22,24)/t13?,14-,15+/file?format=sdf&get3d=True  -- InChI=1S/C20H24N6O4/c1-30-19-16(10-22-20(21)24-19)18(27)23-13-8-14-6-7-15(9-13)25(14)11-12-4-2-3-5-17(12)26(28)29/h2-5,10,13-15H,6-9,11H2,1H3,(H,23,27)(H2,21,22,24)/t13?,14-,15+ could not be loaded.