Our Anti-CA19-9/Sialyl Lewis A (sLeA) mouse monoclonal primary antibody from Antibodies Incorporated is produced in-house from hybridoma clone CA19-9-203. It detects human CA19-9/Sialyl Lewis A (sLeA), and is purified by Protein A chromatography. It is great for use in IHC, ICC, WB, ELISA.