Tris(2-carboxyethyl)phosphine Hydrochloride 51805-45-9

Tris(2-carboxyethyl)phosphine Hydrochloride 51805-45-9

Name: TCEP hydrochloride Other name : Tris(2-carboxyethyl)phosphine Hydrochloride; 3,3′,3′′-Phosphanetriyltripropanoic acid CAS : 51805-45-9 EINECS : N/A MF : C 9 H 16 O 6 ClP MW : 286.65 Appearance : white powder Purity : 98%min. Package : 100g, 500g, 1Kg, 25Kg Availability : 100Kgs in stock...
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Product Details

Name: Tris(2-carboxyethyl)phosphine Hydrochloride

Other name: TCEP hydrochloride; 3,3′,3′′-Phosphanetriyltripropanoic acid

CAS: 51805-45-9


MF: C9H16O6ClP

MW: 286.65

Appearance: white powder

Purity: 98%min.

Package: 100g, 500g, 1Kg, 25Kg

Availability: 100Kgs in stock

Applications: reducing agent in biochemistry and molecular biology applications.


TCEP is often used as a reducing agent to break disulfide bonds within and between proteins as a preparatory step for gel electrophoresis.

   Compared to the other two most common agents used for this purpose (dithiothreitol and β-mercaptoethanol), TCEP has the advantages of being odorless, a more powerful reducing agent, an irreversible reducing agent (in the sense that TCEP does not regenerate—the end product of TCEP-mediated disulfide cleavage is in fact two free thiols/cysteines), more hydrophilic, and more resistant to oxidation in air. It also does not reduce metals used in immobilized metal affinity chromatography.

TCEP (tris(2-carboxyethyl)phosphine) is a reducing agent frequently used in biochemistry and molecular biology applications. It is often prepared and used as a hydrochloride salt (TCEP-HCl) with a molecular weight of 286.65 gram/mol. It is soluble in water and available as a stabilized solution at neutral pH and immobilized onto an agarose support to facilitate removal of the reducing agent.

TCEP is particularly useful when labeling cysteine residues with maleimides. TCEP can keep the cysteines from forming di-sulfide bonds and unlike dithiothreitol and β-mercaptoethanol, it will not react as readily with the maleimide. However, TCEP has been reported to react with maleimide under certain conditions.

Specifications of TCEP.jpg

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