ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C7H12N2O2/c1-7(2,6(10)11)9-5-3-4-8/h9H,3,5H2,1-2H3,(H,10,11)/file?format=sdf&get3d=True -- InChI=1S/C7H12N2O2/c1-7(2,6(10)11)9-5-3-4-8/h9H,3,5H2,1-2H3,(H,10,11) could not be loaded.