The Complement Factor I (CFI) Polyclonal Antibody from MyBioSource.com is a Rabbit Polyclonal antibody to CFI, and Complement factor I. This antibody recognizes Human antigen. The Complement Factor I (CFI) Polyclonal Antibody has been shown to work in the following applications: ELISA, Immunocytochemistry, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.