The Alexa Fluor 546 donkey anti—goat IgG is labeled with our bright, orange-fluorescent Alexa Fluor 546 dye and is prepared from affinity-purified antibodies that react with IgG heavy chains and all classes of immunoglobulin light chains from goat. To minimize crossreactivity, it has been adsorbed against rabbit, rat, mouse and human IgG.