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Albumin, pH 5.2, US-Origin, 200 g

≥96 %, for protein analysis
Icon_TSE-BSE-free
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Pack Qty.
Pack.
BSA
Molar mass (M) ~66 000 g/mol
Storage temp. +4 °C
WGK 1
CAS No. [9048-46-8]
EG-Nr. 232-936-2

Non-neutralized albumin. Suitable as protein standard or hapten carrier, recommmended for use in ELISA and Western-Blotting.
Heatshock albumin.
Recommended if BSA with US-Origin is required.

The Albumin, pH 5.2, US-Origin is very well suited for all applications where Albumin is used as a stabilising reagent, for blocking or as a carrier, e.g. for stabilisation of enzymes and antibodies, or as hapten carrier in immunoassays.
The pH value of albumin pH 5.2 US-Origin is close to its pI and the protein is only weakly charged. It is, therefore, particularly recommended for use in ELISA and Western blotting, since it may help in further reducing background signals.
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€399.00/Pack Qty. 

excl. VAT. | 200 g per Pack Qty.

Art. No. 1ET8.3

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Product details



Albumin, pH 5.2, US-Origin ≥96 %, for protein analysis

The Albumin, pH 5.2, US-Origin is very well suited for all applications where Albumin is used as a stabilising reagent, for blocking or as a carrier, e.g. for stabilisation of enzymes and antibodies, or as hapten carrier in immunoassays.
The pH value of albumin pH 5.2 US-Origin is close to its pI and the protein is only weakly charged. It is, therefore, particularly recommended for use in ELISA and Western blotting, since it may help in further reducing background signals.


For purification of this Albumin an extensive heat-shock/diafiltration method is used, which has been shown to bring more highly purified products than the standard process acc. to Cohn. The process is taking place in a closed system.


Available in large bulk format on request.



Albumin, pH 5.2, US-Origin
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1ET8.1 10 g plastic €41.50
1ET8.2 50 g plastic €130.50
1ET8.3 200 g plastic €399.00
1ET8.4 500 g plastic €815.00
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General information

Recommended Application of Albumins

Albumin Art. No. Recommended Application
Fraction V, Europe 1ETA Stabilisation of proteins and blocking reagent in protein biochemical detection systems. Basically suitable for all assays unless specific requirements apply.
Fraction V, US-Origin 3854 Stabilisation of proteins and blocking reagent in all standard biochemical detection systems. Basically suitable for all assays unless specific requirements apply. Recommended if albumin with certified origin USA has to be used.
Fraction V, NZ-Origin 8076 Stabilisation of proteins and blocking reagent in protein biochemical detection systems. Basically suitable for all assays unless specific requirements apply. Recommended if albumin with certified origin New Zealand or Australia has to be used.
Fraction V, pH 5.2, Europe 2834 Stabilisation of proteins and blocking reagent. Particularly recommended for Western-Blotting and ELISAs.
pH 5.2, US-Origin (heat shock) 1ET8 Stabilisation of proteins and blocking reagent. Particularly recommended for Western-Blotting and ELISAs. Recommended if albumin with certified origin USA has to be used.
sufhydryl-blocked, NZ-Origin (heat shock) 1ET3 Particularly sensitive assays where monomeric albumin is guaranteed to be used or where reproducibility is particularly important. Can be stored as monomers over a longer period of time.
Fraction V, biotin-free, NZ-Origin 0163 Stabilisation of proteins and blocking reagent in all biotin / streptavidin-mediated detection systems (membrane-bound- or coating-plate-assays, as well as soluble assays).
Fraction V, protease-free, Europe T844 Stabilisation of proteins in general, antibodies in particular, and blocking reagent in sensitive enzymatic detection systems, activity tests or protein/protein-interaction assays.
protease-free, US-Origin (heat shock) 1ET5 Stabilisation of proteins in general, antibodies in particular, and blocking reagent in sensitive enzymatic detection systems, activity tests or protein/protein-interaction assays. Recommended if albumin with certified origin USA has to be used.
protease-free, NZ-Origin (heat shock) 1ET7 Stabilisation of proteins in general, antibodies in particular, and blocking reagent in sensitive enzymatic detection systems, activity tests or protein/protein-interaction assays. Recommended if albumin with certified origin New Zealand or Australia has to be used.
IgG-free, US-Origin (heat shock) 1ET9 Stabilisation of antibodies. Blocking reagent in all antibody-mediated detection systems and Radio-Immuno Assays (RIAs). Reduces false-positive signals. Recommended if albumin with certified origin USA has to be used.
IgG-free, NZ-Origin (heat shock) 3737 Stabilisation of antibodies. Blocking reagent in all antibody-mediated detection systems and Radio-Immuno Assays (RIAs). Reduces false-positive signals. Recommended if albumin with certified origin New Zealand or Australia has to be used.
Fraction V, fatty acid-free, Europe 0052 Stabilisation of proteins and blocking reagent in detection systems. Particularly recommended for experiments on metabolism proteins, membrane-associated proteins and cell surface proteins.
fatty acid-free, US-Origin, (heat shock) 9638 Particularly for experiments on metabolism proteins, membrane-associated proteins and cell surface proteins. Also well suited for cell biology and all antibody-mediated detection systems. Recommended if albumin with certified origin USA has to be used.
fatty acid-free, NZ-Origin (heat shock) 1ETC Stabilisation of proteins and blocking reagent in detection systems. Particularly for experiments on metabolism proteins, membrane-associated proteins and cell surface proteins. Recommended if albumin with certified origin New Zealand or Australia has to be used.
very low endotoxin, US-Origin (heat shock) 1ET6 Cell culture of all cell lines, primary cells, stem cells. Cloning and 3D-cultures or cell-stressing assays like transfections, in vitro infections, cell fusion. Recommended if albumin with certified origin USA has to be used.
very low endotoxin, NZ-Origin (heat shock) 1ET4 Cell culture of all cell lines, primary cells, stem cells. Cloning and 3D-cultures or cell-stressing assays like transfections, in vitro infections, cell fusion. Recommended if albumin with certified origin New Zealand or Australia has to be used..

Molar extinction coefficient: 4,4x104 L x mol-1 x cm-1 (acc. to 0,667 L x mol-1 x cm-1 for a 0,1 % solution).


BSA are proteins yielded from blood, which function as binding and transport proteins in blood circulation. Depending on the preparation process, the albumins contain different quality and quantities of metabolic products, enzymes, peptides, fatty acids, vitamines, etc. and are suitable for different applications.


Certificates of Analysis

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Guarantee analysis

Appearancepowder to flakes
Colouroff-white to beige
OriginUSA
Assay≥96 %
Protein≥96 %
Loss on drying≤5 %
Solution (4 % in H2O)complies
pH value (10 % in H2O)5.0-5.6
Sulphated ash≤3 %

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