BSA Fraction V use in serum free cell culture, additive for hybridoma cell culture, serum standard, protein stabilizer and blocking agent. Features :High purity, Neurtral pH-Value, Best standard In Biological assays & No IgG. 'Fraction V' refers to albumin being the fifth fraction of the original Edwin Cohn purification methodology that makes use of the differential solubility charcateristics of plasma proteins.