L-valine is a white monoclinic crystal or crystalline powder, and it is a colorless plate or scaly crystal when it is re-cleaned with an aqueous ethanol solution. Odorless, with a special bitter taste. The melting point is about 315°C. The pH value of 5% aqueous solution is 5.5~7.0. Stable to heat, light and air. Soluble in water (8.85g/100ml, 25Chemicalbook ℃), almost insoluble in ethanol and ether. Difficulty in separation from leucine. Is an essential amino acid. nutritional supplements. L-valine can be used together with other essential amino acids to formulate amino acid infusion and comprehensive amino acid preparations. Valine (1g/kg) is added to rice cakes, and the product has a sesame fragrance. It can also improve the flavor when used in bread.