Organic compounds which contain nitrogen, fluorine, and phosphorus atoms together with carbon atoms and hydrogen atoms and which can be used as a multi-element standard for 1H—, 13C—, 15N—, 19F—, and 31P nuclear magnetic resonance spectroscopy. Also, a nuclear magnetic resonance spectroscopy method, preferably a quantitative nuclear magnetic resonance spectroscopy method, using said compounds and a method for qualitatively and/or quantitatively determining an analyte using such a nuclear magnetic resonance spectroscopy method.