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Bovine Serum Albumin

Name: Bovine Serum Albumin
Brand: SIGMA
Price: 159 USD
Availability: InStock

lyophilized powder, Protease, essentially free, ≥98% (agarose gel electrophoresis)

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Synonym(s):

Albumin bovine serum, BSA, Bovine albumin

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Size/SKU	Availability	Price
10 g	Available to ship TODAYfromMILWAUKEE	$159.00
100 g	Available to ship TODAYfromMILWAUKEE	$688.00
1 kg	Available to ship TODAYfromMILWAUKEE	$4,140.00

About This Item

CAS Number:

9048-46-8

UNSPSC Code:

12352202

EC Number:

232-936-2

NACRES:

NA.27

MDL number:

MFCD00130384

eCl@ss:

32160409

Biological source:

bovine

Assay:

≥98% (agarose gel electrophoresis)

Form:

lyophilized powder

Technique(s):

western blot: suitable

Impurities:

≤5.0% Loss on drying

Concentration:

<0.005 unit/mg solid (Protease)

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Properties

biological source

bovine

Quality Segment

200

assay

≥98% (agarose gel electrophoresis)

form

lyophilized powder

purified by

heat shock fractionation

packaging

poly bottle of

origin

New Zealand origin

concentration

<0.005 unit/mg solid (Protease)

technique(s)

western blot: suitable

impurities

≤5.0% Loss on drying

loss

≤5%

pH

solubility

water: soluble (40 mg/ml)

UniProt accession no.

P02769

foreign activity

Protease, essentially free

storage temp.

2-8°C

Gene Information

bovine ... ALB(280717)

Description

Application

Serum albumin is used in different molecular biology applications, e.g. as an inert protein stabilizer for stock solutions of enzymes and of proteins of interest. In such applications, it is therefore important for the BSA to be protease free, to maintain the integrity of the protein or the enzyme of interest.

Biochem/physiol Actions

Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.

Preparation Note

Derived from New Zealand source serum

Prepared using heat shock fractionation

Serum albumin may be referred to as Fraction V. This naming convention is taken from the original Cohn method of fractionating serum proteins using cold ethanol precipitation. Serum albumin was found in the fifth ethanol fraction using Cohn′s method. Since then, the term "Fraction V" has been used by some to describe serum albumin regardless of the method of preparation. Others have used this term to describe serum albumin purified by ethanol fractionation methods that have been highly modified since the original Cohn method was described. Sigma-Aldrich manufactures and distributes serum albumins purified from a variety of primary methods including the true Cohn fractionation method, modified ethanol fractionation methods, heat shock and chromatography. Additional purification steps may include crystallization or charcoal filtration.

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This Item	A7638	A1470	A3608
Sigma-Aldrich A3858 Bovine Serum Albumin	Sigma-Aldrich A7638 Bovine Serum Albumin	Sigma-Aldrich A1470 Bovine Serum Albumin	Sigma-Aldrich A3608 Bovine Serum Albumin
description lyophilized powder, Protease, essentially free, ≥98% (agarose gel electrophoresis)	description lyophilized powder, essentially globulin free, ≥99% (agarose gel electrophoresis)	description lyophilized powder, low endotoxin, BioReagent, suitable for cell culture, ≥98% (agarose gel electrophoresis)	description lyophilized powder, ≥96% (agarose gel electrophoresis)
biological source bovine	biological source bovine	biological source bovine	biological source bovine
assay ≥98% (agarose gel electrophoresis)	assay ≥99% (agarose gel electrophoresis)	assay ≥98% (agarose gel electrophoresis)	assay ≥96% (agarose gel electrophoresis)
technique(s) western blot: suitable	technique(s) blocking: suitable, microbiological culture: suitable	technique(s) cell culture \| mammalian: suitable	technique(s) immunoprecipitation (IP): suitable
origin New Zealand origin	origin USA origin	origin USA origin	origin New Zealand origin
Quality Level 200	Quality Level 300	Quality Level 200	Quality Level 200
form lyophilized powder	form lyophilized powder	form lyophilized powder	form lyophilized powder

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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