ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C3H6N2O2/c4-2-1-7-5-3%282%296/h2H%2C1%2C4H2%2C%28H%2C5%2C6%29/t2-/m1/s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C3H6N2O2/c4-2-1-7-5-3%282%296/h2H%2C1%2C4H2%2C%28H%2C5%2C6%29/t2-/m1/s1 could not be loaded.