\As*par"a*gine\, n. [Cf. F. asparagine.] (Chem.) A white, nitrogenous, crystallizable substance, {C4H8N2O3+H2O}, found in many plants, and first obtained from asparagus. It is believed to aid in the disposition of nitrogenous matter throughout the plant; -- called also {altheine}.
pKa1 pKa2 pI Water Solubility (30deg C) 2.02 8.80 5.41 3.6