Bovine Serum Albumin, Cohn Fraction V, pH 5.2
Bovine albumin purified from bovine serum by the Cohn method, pH adjusted to 5.0–5.6 and lyophilized. Meets EU requirements for technical blood products (pH held at ≤5 for at least 2 hours).
Specifications
Storage:
2 – 8°C
Release criteria
Purity:
≥ 96% by serum protein electrophoresis
pH:
5.0 – 5.6
Moisture:
≤ 5%
VSV Indiana virus:
None Detected
Solubility:
Clear to slightly hazy colorless to faint yellow solution
Nitrogen:
14.5 – 16.5%
5 more criteria Show less
Inactivation:
pH not more than 5.0 for at least 2 hours
BVDV Following 9CFR Guidelines:
None Detected
UV/VIS absorbance, 406nm, 4% w/v:
≤ 0.5
Bluetongue virus:
None Detected
VSV New Jersey virus:
None Detected
Lead time on this item is currently: 2-4 Weeks
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Product Overview
| Species: | Bovine |
|---|---|
| Product Types: | Blood Fraction |
| Purity: | ≥ 96% by serum protein electrophoresis |
| Application Notes: | Reportedly useful as a stabilizer/blocker for EIA and RIA systems, IHC assays, immunoprecipitation, Western Blot and ELISA experiments, and protein standards. |
| Testing: | Serum Protein Electrophoresis: ≥ 95% pH: 5.0-5.6 Moisture Content: ≤ 5% |
| Storage Conditions: | 2 – 8°C |
| Packaging: | Poly bottle |
| Expiration: | 3 years from date of manufacture when stored dry at 2 – 8°C; reconstituted solutions should be aliquoted and frozen |
Product Applications
- Western blot
- ELISA
- Radioimmunoassay
- Immunohistochemistry
- Immunoprecipitation
- Blocking protein
- Assay diluent & negative matrix
- Cell culture
- Protein purification
- In vitro diagnostics
Documents & Datasheets
Certificate of Analysis
| Lot | Issued | |
|---|---|---|
| 21948 | Sep 9, 2026 | Download |
| 22648 | Sep 8, 2026 | Download |
| 22348 | Sep 8, 2026 | Download |
| 21548 | Sep 1, 2026 | Download |
| 20948 | Sep 1, 2026 | Download |
| 17748 | Aug 26, 2026 | Download |
| 17648 | Aug 7, 2026 | Download |
| 15248 | Jul 7, 2026 | Download |
| 16148 | Jul 2, 2026 | Download |
| 11048 | Jun 25, 2026 | Download |
Show all 40 certificates
| 13448 | Jun 22, 2026 | Download |
| 12748 | May 27, 2026 | Download |
| 36247 | Feb 24, 2026 | Download |
| 34947 | Jan 8, 2026 | Download |
| 34247 | Dec 22, 2025 | Download |
| 32547-B | Dec 17, 2025 | Download |
| 32547-A | Dec 17, 2025 | Download |
| 31847-B | Dec 10, 2025 | Download |
| 32347 | Dec 10, 2025 | Download |
| 32147-B | Dec 10, 2025 | Download |
| 30747 | Dec 4, 2025 | Download |
| 29747-A | Nov 11, 2025 | Download |
| 29747-B | Nov 11, 2025 | Download |
| 28347-C | Oct 29, 2025 | Download |
| 28347-B | Oct 29, 2025 | Download |
| 26247-A | Oct 22, 2025 | Download |
| 25847 | Oct 7, 2025 | Download |
| 25547 | Oct 2, 2025 | Download |
| 21047 | Aug 20, 2025 | Download |
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| 15447 | Jun 27, 2025 | Download |
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| 11447 | Jun 4, 2025 | Download |
| 10147 | Jun 3, 2025 | Download |
Frequently Asked Questions
What is the difference between pH 5.2, pH 7 and heat-shock bovine serum albumin?
Our Cohn Fraction V albumin is supplied as fractionated at pH 5.2 (27002) or adjusted to pH 7 (27003); heat-shock albumin (27001) is made by heat-shock fractionation rather than the cold-ethanol Cohn method. Cell culture, diagnostic reagents and other applications that need near-physiological pH take the pH 7 version; if you will buffer the albumin yourself, pH 5.2 works.
Alternate Names
BSA Cohn Fraction V pH 5.2; Bovine Albumin Cohn Fraction V pH 5.2
