CAS号:9001-50-7 MDL:MFCD00131203 外观/性状:Lyophilized powder containing citrate buffer salts 含量/活性:Protein, ≥80% biuret. ≥75 units/mg protein foreign activity: 3-Phosphoglyceric phosphokinase ≤0.05% lactic dehydrogenase, myokinase, and pyruvate kinase ≤0.01% triosephosphate isomerase ≤0.1% Unit Definition:One unit will reduce 1.0 μmole of 3-phosphoglycerate to D-glyceraldehyde 3-phosphate per min in a coupled system with 3-phosphoglyceric phosphokinase at pH 7.6 at 25℃.