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646547

Supelco

Tris(2-carboxyethyl)phosphine hydrochloride solution

0.5 M, pH 7.0(aqueous solution; pH was adjusted with ammonium hydroxide)

Synonym(s):
TCEP
Empirical Formula (Hill Notation):
C9H15O6P · HCl
CAS Number:
Molecular Weight:
286.65
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

concentration

0.5 M

refractive index

n20/D 1.367

pH

7.0(aqueous solution; pH was adjusted with ammonium hydroxide)

density

1.041 g/mL at 25 °C

SMILES string

Cl.OC(=O)CCP(CCC(O)=O)CCC(O)=O

InChI

1S/C9H15O6P.ClH/c10-7(11)1-4-16(5-2-8(12)13)6-3-9(14)15;/h1-6H2,(H,10,11)(H,12,13)(H,14,15);1H

InChI key

PBVAJRFEEOIAGW-UHFFFAOYSA-N

General description

Tris (2-carboxyethyl) phosphine (TCEP) is very effective in cleaving disulfide bonds in aqueous solution. It dissolves in water and is odorless, unlike other trialkylphosphines (tributylphosphine). It is also less toxic than 2-mercaptoethanol. These advantages make it better than the other reducing agents.
It belongs to the trialkylphosphine class.

Application

Tris (2-carboxyethyl) phosphine (TCEP) can be used in several downstream applications including SDS-PAGE, mass spectrometry, labeling with cysteine specific tags, and modification of cysteine containing compounds. It prevents oxidation of protein samples, which makes it a useful buffer component as it helps to preserve enzymatic activity. It has been used in the reduction and measurement of glutathione.
Tris (2-carboxyethyl) phosphine (TCEP) has also been used:
  • to cleave cysteine residues in a synthetic peptide
  • in reduction buffer for RNA Sequential Probing of Targets (SPOTs) imaging
  • for the reduction of oligonucleotides
  • as reducing agent during mitochondrial isolation

Packaging

10×1 mL in ampule

Biochem/physiol Actions

Tris(2-carboxyethyl)phosphine hydrochloride solution reduces the disulfide bonds and leaves other functional groups intact in proteins.
As a non-mercaptan reducing agent, it avoids the toxicity inherent in thiol-containing compounds. It is capable of disrupting the botulinum neurotoxin B heavy-chain/light-chain complex that is held together by a single disulfide bond, and that is responsible for endocytosis, and ultimately the toxicity, of the toxin. Since disulfide-coupled subunits are characteristic of many toxins (e.g., ricin, snake venom, and all BoNT serotypes), it may be useful as a rescue prophylactic in cases of toxin administration.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Xuerong Shi et al.
Journal of cellular biochemistry, 107(5), 1021-1030 (2009-06-06)
The light chain (LC) of botulinum neurotoxin B (BoNT/B) is unable to enter target neuronal cells by itself. It is brought into the cell in association with the BoNT/B heavy chain (HC) through endocytosis. The BoNT HC-LC subunits are held...
M C Gilbert Lee et al.
Journal of visualized experiments : JoVE, (87)(87), doi:10-doi:10 (2014-05-20)
Cell surface proteins, including extracellular matrix proteins, participate in all major cellular processes and functions, such as growth, differentiation, and proliferation. A comprehensive characterization of these proteins provides rich information for biomarker discovery, cell-type identification, and drug-target selection, as well...
Defined DNA/nanoparticle conjugates
Ackerson CJ, et al.
Proceedings of the National Academy of Sciences of the USA, 102(38), 13383-13385 (2005)
Differential labeling of free and disulfide-bound thiol functions in proteins
Seiwert B, et al.
Journal of the American Society For Mass Spectrometry, 19(1), 1-7 (2008)
Highly multiplexed quantitative mass spectrometry analysis of ubiquitylomes
Rose CM, et al.
Cell Systems, 3(4), 395-403 (2016)

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