Specification :

White monoclinic system crystal or crystalline powder, and the recrystal using the ethanol solution is colorless platy or scaly crystal. Smell-less, has special bitter taste. Melting
point: 315 . The Ph value of the 5% aqueous solution is 5.5-7.0. It is stable to the heat, light and air. Easy to dissolve in water( 8.85g/ 100ml25 ) , almost does not dissolve in ethanol and ether. Difficult to separate from the leucine.