Donor Donkey Serum: Collected from healthy animals in carefully maintained standing herds of US origin. Sterility tested Sterile filtered to 0.2 µm Storage Conditions: -20°C + 5°C Unit Price Catalog Number Size 1-10 11-50 SD-0100 100 ml $25.00 $22.00 SD-0500 500 ml $55.00 Please Inquire For use in research and manufacturing only. Not intended for direct use in diagnostic or therapeutic applications.