Spanclone Anti-AB Serum (10ml) Mono is a monoclonal agglutination reagent for determining human ABO blood groups, specifically designed to react with both A and B antigens on red blood cells, providing clear, visible agglutination for diagnostic purposes. Manufactured by Arkray, it offers high avidity, a high antibody titer, no cross-reactivity with acquired B antigens, and is free from HIV, HCV, and HBsAg antibodies. It follows international standards (AABB, FDA, NIBSC) and uses colour-coded reagents for easy identification.