ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H14N2O4/c9-5%287%2812%2913%291-2-6%2811%2910-8%2814%293-4-8/h5%2C14H%2C1-4%2C9H2%2C%28H%2C10%2C11%29%28H%2C12%2C13%29/t5-/m0/s1/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C8H14N2O4/c9-5%287%2812%2913%291-2-6%2811%2910-8%2814%293-4-8/h5%2C14H%2C1-4%2C9H2%2C%28H%2C10%2C11%29%28H%2C12%2C13%29/t5-/m0/s1 could not be loaded.