A4161
Bovine Serum Albumin
lyophilized powder, essentially globulin free, BioReagent, suitable for cell culture
Synonym(s):
Albumin bovine serum, BSA, Bovine albumin
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About This Item
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Recommended Products
biological source
bovine
Quality Level
product line
BioReagent
Assay
≥99%
form
lyophilized powder
mol wt
~66 kDa
purified by
cold ethanol and heatshock fractionation
packaging
poly bottle of
origin
USA origin
technique(s)
cell culture | mammalian: suitable
impurities
essentially globulin free
pH
7
solubility
water: soluble (50 mg/ml)
UniProt accession no.
storage temp.
2-8°C
Gene Information
bovine ... ALB(280717)
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Biochem/physiol Actions
Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.
Features and Benefits
- Tested for use in cell culture
- Essentially globulin free
Preparation Note
Purified by a combination of heat shock and ethanol 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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