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SRE0096

Sigma-Aldrich

Bovine Serum Albumin

≥98.0%, New Zealand Origin, ≤3 EU/mg endotoxin, protein quantification

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Synonym(s):
Albumin bovine serum, BSA, Bovine albumin
CAS Number:
9048-46-8
MDL number:
MFCD00130384
UNSPSC Code:
41141801

grade

standard grade

Assay

≥98.0%

form

powder

mol wt

~66 kDa

purified by

heat shock fractionation

origin

New Zealand origin

availability

available only in China

technique(s)

protein quantification: suitable

impurities

≤3 EU/mg endotoxin

pH

7.0

cation traces

heavy metals (as Pb): ≤10 ppm

foreign activity

Ribonuclease, none detected
endonuclease, none detected
protease ≤0.005 units/mg solid
proteinase, none detected

storage temp.

2-8°C

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Biochem/physiol Actions

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

Preparation Note

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.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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