Purity:Purified by Protein A affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.2. No preservative added. No stabilizing proteins added. Labeled with Alkaline Phosphatase (AP).
Specificity:Reacts with the epitope exposed on free A subunit and on whole Diphtheria toxin molecule. Does not crossreact with free B subunit of Diphtheria toxin.