This recombinant Classical Swine Fever Virus (CSFV) E2 antigen is a high‑quality research reagent designed to support virology, immunology, and diagnostic assay development. The E2 glycoprotein is the major immunodominant structural protein of CSFV and plays a central role in generating neutralizing antibodies, making it essential for studies of viral immunity and vaccine response. Produced recombinantly and supplied at 0.1 mg, this purified protein provides consistent performance in ELISA, serological assay calibration, antigen detection workflows, and method development for IVD applications. Its defined composition and reliable lot‑to‑lot reproducibility enable accurate assay optimization and experimental standardization. Manufactured by Immunology Consultants, this CSFV E2 antigen is ideal for laboratories requiring a dependable, well‑characterized viral protein for research and diagnostic innovation.