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 Biotin.
Specificity:Reacts mainly with alpha subunit of hCG. Cross-reacts with whole molecule of hCG, hLH, hTSH and hFSH. No cross reactivity with free hCG beta-subunit.