Molecular weight: ≥ 57 kD
Inhibitors: Pi, metal chelating agents, divalent heavy metal ions (e.g.,
Be²⁺, Zn²⁺), many amino acids (e.g., L-phenylalanine, L-tryptophan,
L-cysteine), iodosobenzoate, iodoacet-amide.

Activators: Mg²⁺, Co²⁺, Mn²⁺
pH optimum: 9.8
pH stability: 8.0
Thermal stability: Up to + 40°C Appearance: Clear, colourless solution in NaCl, 3 mol/L; MgCl₂ , 1
mmol/L; ZnCl₂, 0.1 mmol/L; Tea, 30 mmol/L
pH value: 7.0-8.0
Protein (A280, 1 mg/ml=1, against water): ≥10 mg/mL
Specific activity (+37°C, 4-NPP): ≥ 3,000 U/mg
Alkaline Phosphatase (HPLC): ≥95 area% (HPLC profile added to
certificate)
Amino groups: 8-16 mol/mol
Carbohydrates, n=2: No limit
Molecular weight: ≥57,000 D

NH₄: ≤30 ppm

pH 5.5 treatment (30 minutes): Corresponds to specification

Origin of bovine intestine: NZL
Stability: At +2 to +8°C within specification range for 15 months.