Physical form
Suspension in 3.0 M (NH4)2SO4 containing 10 mM sodium acetate, pH approx. 4.0
Unit Definition
One unit will hydrolyze 1 µmole of p-nitrophenyl-β-D-mannopyranoside to p-nitrophenol and D-mannopyranoside per min at pH 4.0 at 25°C.
This product has met the following criteria: