If your compound isn't on the other site's list, this program will simulate the NMR graph of a molecule you draw. If you have the name, but not the chemical structure, use the MarvinSketch link I posted earlier to get the structure from the name. There might be an option to create the graph from the compound name, but the interface is really hard to understand and/or read.
But it does seem to be accurate (my homework program accepted my answers based off these graphs).











