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12657 Sigma-Aldrich

Albumin, Bovine Serum, Fraction V, Crystalline

Synonym: Albumin, Bovine Serum, Fraction V, Crystalline



Related Categories Auxiliary Proteins, Biochemicals and Reagents, Other, Proteins and Derivatives
assay   ≥99% (cellulose acetate electrophoresis)
form   solid
mfr. no.   Calbiochem®
storage condition   OK to freeze
storage conditions   +2C to +8C
impurities   ≤5% moisture
solubility   aqueous buffer: 20 mg/mL
  water: 20 mg/mL
shipped in   ambient


General description

Prepared by cold ethanol extraction (Cohn method) followed by crystallization.

Prepared from bovine plasma by the Cohn original cold ethanol plasma fractionation method, followed by crystallization at low temperatures. Suitable for sensitive applications requiring high albumin purity and low residual levels of globulins and other biochemical activities. Suitable for the preparation of protein and molecular weight standards, and as a blocking agent for nonspecific binding in ELISA and RIA procedures. It is also useful as an antigen carrier protein in immunological studies and monoclonal antibody production, and as a control protein for enzymatic assays, such as protease, peroxidase, phosphatase or nuclease when determining the purity of reagent grade albumins.


1, 5 g in Plastic ampoule

25 g in Glass bottle


Toxicity: Standard Handling (A)


Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Cohn, F.J., et al. 1947. J. Am. Chem. Soc.69, 1753.

Safety & Documentation

Safety Information

Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


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