n-propanol, also known as 1-propyl alcohol, propyl alcohol. The molecular formula is CH3CH2CH2OH(C3H7OH) and the molecular weight is 60.10. A clear, colorless liquid having an ethanol-like odor; soluble in water, ethanol, and ether. Propionaldehyde is synthesized from ethylene by carbonyl and then reduced. It is mainly used to make fuel oil fungicide, pesticide and pharmaceutical raw materials, spice raw materials, erythromycin, bromopropane, propyl acetate, paint, ink, normal propyl acetate, etc.