A pungent-smelling colourless unsaturated liquid alcohol, CH2=CHCH2OH; b.p. 97°C. It is found in wood alcohol and can be prepared in the laboratory by reducing propenal or by heating glycerol with oxalic acid. Industrially, it is made by the high-temperature catalytic reaction between propenal and 2-propanol or by the hydrolysis of 2-chloropropene, which is made by chlorinating propene. Potassium permanganate oxidizes propenol to glycerol and silver oxide converts it to a mixture of propenoic acid and propenal.