(EPO)Human, RecombinantDerived from Epo cDNA expressed in transfected cell linesPurity: >>97% by SDS PAGE and HPLCSupplied as a sterile filtered solution in 50% glycerol containing 25 mM HEPES, pH 7.2.Ultra Pure GradeActivity: 100,000 units/A280 ; ED50 is 0.05-0.1 units/ml.Ref: 1. Graber, S.E. and Krantz, S.B., Ann. Rev. Med., 29: 51 (1978). 2. Cotes, P.M., et al., J. Haematol., 50: 427 (1982).