Molecular structure determination is a crucial step in the development of active ingredients and quality control of pharmaceuticals. Therefore, we run several NMR analyses including e.g.1H, 13C, 19F, 23Na , and 31P NMR. To elucidate the chemical structure, 2D-NMR analyses like COSY, HSQC and HMBC are performed to identify the connection between different nuclei. Thus, active ingredients, impurities and solvents can be determined