CA19-9 Monoclonal antibody 100 ug. CA19-9 Monoclonal antibody, Clone: 121SLE, Host: Mouse, Species reactivity: Human, Isotype: IgM, kappa, Immunogen: Precipitin lines obtained after immuno-diffusion MAb 116-NS-19-9 and mucins isolated from ovarian cyst, Synonyms: CA19.9, Size: 100 ug