N-propanol and isopropanol are both alcohols with different chemical structures. N-propanol has a linear structure, while isopropanol has a branched structure. This difference affects their chemical properties and applications. N-propanol is more polar and has a higher boiling point, making it useful as a solvent for paints and coatings. Isopropanol is less polar and has a lower boiling point, making it commonly used as a disinfectant and solvent in pharmaceuticals and cosmetics.