Alkaline Phosphatase1,000 UConjugation GradeAmmonium Sulfate SuspensionSource: Calf Intestine Adenosine Deaminase: <=0.001%Concentration (37 C): >7500U/mlPhosphodiesterase: <=0.001%DNase, RNase, and Protease: NoneSpecific activity (37 C, pH 10.5, DEA): >1500U/mg