The Alexa Fluor 594 donkey anti—rabbit IgG is labeled with our superior red-fluorescent Alexa Fluor 594 dye and is prepared from affinity-purified antibodies that react with IgG heavy chains and all classes of immunoglobulin light chains from rabbit. The donkey anti—rabbit IgG antibodies show minimum crossreactivity to bovine, chicken, goat, guinea pig, hamster, horse, human, mouse, rat and sheep serum proteins.