This antibody is produced by immunizing mouse with purified BSA.
References:
Carraway R.E., Mitra S.P., Cochrane D.E.; "Structure of a biologically active neurotensin-related peptide obtained from pepsin-treated albumin(s)."; J. Biol. Chem. 262:5968-5973(1987).
Brown J.R.; "Structure of serum albumin: disulfide bridges."; Fed. Proc. 33:1389-1389(1974).
Brown J.R.; "Structure of bovine serum albumin."; Fed. Proc. 34:591-591(1975).