~4'600U/mg protein. One unit is defined as the amount of enzyme that inhibits the rate of reduction of ferricytochrome c by 50% at 25°C, pH 7.8 (J.M. McCord & I. Fridovich; J. Biol. Chem. 244, 6049 (1969)).
Reconstitute with distilled water, saline or neutral buffer to give a clear slightly blue solution.
Long Term Storage:
Reconstituted product should be stored at +4°C and is stable for up to 2 days.