Anti-Hepatitis B Surface Antigen (HBsAg) Antibody

Offered through the Antibodies.com Primary Antibodies catalog and supplied regionally by AFMS, this research-grade reagent is a mouse monoclonal IgG2a antibody directed against the Hepatitis B Surface Antigen (HBsAg). The clone was raised against native HBsAg and recognizes both the ad and ay subtypes, with cross-reactivity testing showing no reactivity against normal human serum — a profile that makes it a highly specific probe for hepatitis B virus research and immunoassay development. The antibody is supplied as 1 mg of Protein A-purified monoclonal at a purity of greater than 90%, formulated in 10 mM Phosphate Buffered Saline (pH 7.2) with 0.1% sodium azide as preservative, and is unconjugated so it can be directly labeled or used in standard detection workflows. Validated applications include ELISA and Immunofluorescence Assay (IFA), and it is also commonly deployed in lateral flow assay development, with the matched detection partner EastCoast Bio J345 enabling the construction of complete sandwich immunoassays. The product is manufactured in Finland and shipped under research-use-only terms, meaning it is not intended for diagnostic or therapeutic use. For stability, vials should be stored short term at 2–8 °C and long term at −20 °C, with repeated freeze-thaw cycles avoided to preserve binding activity.