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A9056

Sigma-Aldrich

Bovine Serum Albumin

heat shock fraction, microbiologically tested, ≥96% (agarose gel electrophoresis)

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Synonym(s):
Albumin bovine serum, BSA, Bovine albumin
CAS Number:
EC Number:
MDL number:
NACRES:
NA.27

biological source

bovine

Quality Level

Assay

≥96% (agarose gel electrophoresis)

form

lyophilized powder

mol wt

~66 kDa

purified by

heat shock fractionation

packaging

poly bottle of

origin

USA origin

technique(s)

cell culture | mammalian: suitable

impurities

≤5.0% Loss on drying

loss

≤5%

pH

7

solubility

water: soluble (40 mg/ml)

UniProt accession no.

foreign activity

BT virus, none detected
Microbiological test (pass)
VSV virus, none detected
growth of Borrelia burgdorferi in BSK II medium (Suitable for)

storage temp.

2-8°C

Gene Information

bovine ... ALB(280717)

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This Item
A4378A4612A8806
Bovine Serum Albumin heat shock fraction, microbiologically tested, ≥96% (agarose gel electrophoresis)

Sigma-Aldrich

A9056

Bovine Serum Albumin

Bovine Serum Albumin lyophilized powder, 1× crystallized, ≥97% (agarose gel electrophoresis)

Sigma-Aldrich

A4378

Bovine Serum Albumin

Bovine Serum Albumin lyophilized powder, Essentially fatty acid free

Sigma-Aldrich

A4612

Bovine Serum Albumin

Bovine Serum Albumin fatty acid free, low endotoxin, lyophilized powder, BioReagent, suitable for cell culture, ≥96% (agarose gel electrophoresis)

Sigma-Aldrich

A8806

Bovine Serum Albumin

assay

≥96% (agarose gel electrophoresis)

assay

≥97% (agarose gel electrophoresis)

assay

≥98% (agarose gel electrophoresis)

assay

≥96% (agarose gel electrophoresis)

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

mol wt

~66 kDa

mol wt

~66 kDa

mol wt

~66 kDa

mol wt

~66 kDa

purified by

heat shock fractionation

purified by

cold ethanol fractionation

purified by

-

purified by

cold ethanol fractionation

packaging

poly bottle of

packaging

poly bottle of

packaging

poly bottle of

packaging

poly bottle of

General description

Albumin is the most abundant plasma protein in humans. High levels of albumin are associated with dehydration. Albumin turnover is seen in infants with iron deficiency anemia. Serum albumin is a reliable prognostic indicator for liver disease. Oxidative damage of albumin is associated with advanced liver disease.

Application

Bovine Serum Albumin has been used as a supplement in Dulbecco′s modified eagle medium (DMEM). It has also been used in immunostaining of cell arrays.

Biochem/physiol Actions

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

Suitability

Suitable for growth of Borrelia burgdorferi in BSK II medium

Preparation Note

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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