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N-propanol, also known as 1-Propyl alcohol, propanol. The molecular formula is CH3CH2CH2OH (C3H7OH) and the molecular weight is 60.10. A colorless transparent liquid with the odor of ethanol, soluble in water, ethanol and ether. Propionaldehyde is synthesized by carbonylation of ethylene and then reduced. Mainly used as solvents, such as a large number of inks, can also replace ethanol with lower boiling point as a solvent, and in the printing and dyeing of plastic film polyamide ink solvent, has a special role. It is also used for chromatographic analysis. As an intermediate, it is mainly used to produce n-propylamine, propyl ester, acrylamide and so on.