Nuclear magnetic resonance spectroscopy (NMR) is a powerful analytical technique used to characterize organic molecules by identifying carbon-hydrogen frameworks. NMR works by applying radio waves to change the nuclear spins of elements like hydrogen-1 and carbon-13 in a strong magnetic field, which produces resonance signals. An NMR machine consists of a powerful magnet, radio transmitter, detector, and recorder. The NMR spectrum plots peak intensity against chemical shift in parts per million and provides information about a molecule's structure.