Bovine Serum Albumin (BSA, Cohn Fraction V) is the major protein in bovine blood plasma, with a molecular weight of ~66.5 kDa. It is a highly purified, stable, and widely used biochemical reagent for life science research, diagnostics, and biomanufacturing. Basic Information: - Product Name: Bovine Serum Albumin (BSA) - Synonyms: BSA, Cohn Fraction V, Bovine Plasma Albumin - CAS Number: 9048-46-8 - Molecular Weight: ~66.5 kDa - Appearance: White to off-white lyophilized powder - Purity: ≥96%–98% (agarose gel electrophoresis/ Bradford) - Endotoxin: ≤1–5 EU/mg (LAL tested) - Fatty Acid: ≤0.02% - IgG Content: Low / Undetectable - Source: Bovine (Australia/New Zealand/USA, BSE/TSE-free regions) - Purification Method: Cold ethanol fractionation / Heat shock - Solubility: Soluble in water (4% solution clear) - pH (10% solution): 6.8–7.2 Key Applications: 1. Cell culture media supplement (serum-free / low-serum systems) 2. ELISA, Western blot, IHC blocking agent (reduces non-specific binding) 3. Protein quantification standard (BCA, Bradford assays) 4. Enzyme stabilizer & carrier protein in molecular biology 5. In vitro diagnostics (IVD), immunoassays, and vaccine production 6. Drug formulation & protein stabilization in biopharmaceuticals Advantages: - High purity & low endotoxin for sensitive cell-based and diagnostic assays - Low fatty acid & low IgG to minimize interference - BSE/TSE-free certified source with full traceability - Excellent solubility & lot-to-lot consistency - Available in multiple grades: Standard, Cell Culture, Low Endotoxin, Diagnostic Grade Storage: Store at 2°C–8°C (dry condition); avoid repeated freezing-thawing. Shelf life: 24 months unopened, 6 months after opening. For COA, MSDS, bulk pricing, or custom packaging, please contact us directly.
