The Alexa FluorŪ 488 Donkey Anti-Goat IgG (H+L) is labeled with our bright, photostable, green-fluorescent Alexa Fluor 488 dye. It is prepared from affinity-purified antibodies that react with IgG heavy chains and all classes of immunoglobulin light chains from goat. To minimize cross-reactivity, it has been adsorbed against rabbit, rat, mouse, and human IgG.