Cedarlane offer Goat, Sheep, Horse and Swine Sera. All sera can be used for blocking in immunohistochemistry, as control sera or as additives in diluting buffers. Frozen non-sterile products are filtered to 0.45µm; sterile products are filtered to 0.22µm. Each serum is selected for low haemolysis. Liquid formats contain 0.1% sodium azide.