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Specifications

Human Haptoglobin, produced from pooled human plasma, exists in three common phenotypes; Hp 1-1, Hp 2-1, Hp 2-2 with a molecular mass ranging from 8kD-200kD. It is a glycoprotein which is synthesized in the liver and circulating in the blood. Reduced levels seen in hemolysis and impaired liver function. High levels are a marker for acute or chronic inflammation.
Catalog #	H1820-03
Appearance	White to off-white powder
Solubility	Clear to slightly hazy, colorless to faint yellow and complete at 10mg/ml in dH2O.
Protein by UV Absorbance	50%
Stability	Human Haptoglobin although stable at RT for 3 weeks, should be stored between 2-8C.
CAS Number	9087-69-8
Source	Human plasma
Purity	95% (SDS-PAGE): polymorphic form (mixture of 1–1, 2–1 and 2–2).
Form	Supplied as a salt-free, lyophilized solid
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.