ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C8H12N2O2/c1-5-8%2812%297%282-9%296%284-11%293-10-5/h3%2C11-12H%2C2%2C4%2C9H2%2C1H3/file?format=sdf&get3d=True -- InChI%3DInChI%26%2361%3B1S/C8H12N2O2/c1-5-8%2812%297%282-9%296%284-11%293-10-5/h3%2C11-12H%2C2%2C4%2C9H2%2C1H3 could not be loaded.