Methods of Preparation:
Sigma-Aldrich produces human serum albumin using a cold alcohol fractionation process derived from the traditional Cohn1,3 method as well as heat shock methods.2,4
Molecular Weight:
66,437 Da8 (based on amino acid composition). Commercial preparations contain varying degrees of post-translational modifications and genetic variants with molecular weight components mainly in the range of 66,437 to 66,600 Da