Date published: 2026-4-5

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TCEP, Hydrochloride (CAS 51805-45-9)

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Alternate Names:
TCEP, Hydrochloride is also known as tris(2-Carboxyethyl)phosphine, HCl.
Application:
TCEP, Hydrochloride is a water soluble, non-thiol, strong reducing agent shown to cleave disulfide bonds.
CAS Number:
51805-45-9
Purity:
≥98%
Molecular Weight:
286.65
Molecular Formula:
C9H15O6P•HCl
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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TCEP, Hydrochloride is a water soluble, non-thiol, strong reducing agent shown to cleave disulfide bonds. Reports indicate that TCEP, Hydrochloride can rapidly reduce stable alkyl disulfides, including DTT. TCEP, Hydrochloride has been observed to reduce DHA in a solution of EDTA and metaphosphoric acid. TCEP, Hydrochloride is also used to conduct proteolysis and Hydrogen/Deuterium exchange. Binding studies demonstrate that TCEP, Hydrochloride does not bind Hg2+, and its binding efficacy to NF-κB-DNA has been tested in vitro. TCEP, Hydrochloride is also known as tris(2-Carboxyethyl)phosphine HCl, 3,3,3-Phosphinidynetrispropanoic Acid Hydrochloride, 3-bis(3-oxido-3-oxopropyl)phosphanylpropanoate, and propanoic acid, 3, 3′, 3′ ′ -phosphinidynetris-, hydrochloride.


TCEP, Hydrochloride (CAS 51805-45-9) References

  1. Inhibition of NF-kappaB-DNA binding by mercuric ion: utility of the non-thiol reductant, tris(2-carboxyethyl)phosphine hydrochloride (TCEP), on detection of impaired NF-kappaB-DNA binding by thiol-directed agents.  |  Dieguez-Acuña, FJ. and Woods, JS. 2000. Toxicol In Vitro. 14: 7-16. PMID: 10699356
  2. Determination of ascorbic acid and dehydroascorbic acid in biological samples by high-performance liquid chromatography using subtraction methods: reliable reduction with tris[2-carboxyethyl]phosphine hydrochloride.  |  Lykkesfeldt, J. 2000. Anal Biochem. 282: 89-93. PMID: 10860503
  3. Switch peptide via Staudinger reaction.  |  Nepomniaschiy, N., et al. 2008. Org Lett. 10: 5243-6. PMID: 18959426
  4. TCEP treatment reduces proteolytic activity of BoNT/B in human neuronal SHSY-5Y cells.  |  Shi, X., et al. 2009. J Cell Biochem. 107: 1021-30. PMID: 19492407
  5. Simultaneous reduction and digestion of proteins with disulfide bonds for hydrogen/deuterium exchange monitored by mass spectrometry.  |  Zhang, HM., et al. 2010. Anal Chem. 82: 1450-4. PMID: 20099838
  6. Determination of dehydroascorbic acid in mouse tissues and plasma by using tris(2-carboxyethyl)phosphine hydrochloride as reductant in metaphosphoric acid/ethylenediaminetetraacetic acid solution.  |  Sato, Y., et al. 2010. Biol Pharm Bull. 33: 364-9. PMID: 20190394
  7. Excystation of Eimeria acervulina, E. maxima, and E. tenella differs in response to trypsin and chymotrypsin and the presence of reducing agents DTT and TCEP.  |  Jenkins, MC., et al. 2019. Mol Biochem Parasitol. 233: 111219. PMID: 31518610
  8. Effects of Small Molecules on DNA Adsorption by Gold Nanoparticles and a Case Study of Tris(2-carboxyethyl)phosphine (TCEP).  |  Wu, R., et al. 2019. Langmuir. 35: 13461-13468. PMID: 31536371
  9. Effects of tris (2-carboxyethyl) phosphine hydrochloride treatment on porcine oocyte in vitro maturation and subsequent in vitro fertilized embryo developmental capacity.  |  Zeng, Y., et al. 2021. Theriogenology. 162: 32-41. PMID: 33444914
  10. In-capillary (electrophoretic) digestion-reduction-separation: A smart tool for middle-up analysis of mAb.  |  Dadouch, M., et al. 2021. J Chromatogr A. 1648: 462213. PMID: 33991752
  11. Nitric oxide inhibits endothelial cell apoptosis by inhibiting cysteine-dependent SOD1 monomerization.  |  Peng, H., et al. 2022. FEBS Open Bio. 12: 538-548. PMID: 34986524
  12. Ultrasensitive disulfide scrambling analysis of mAbs by LC-MS with post-column reduction and glycine signal enhancement.  |  Kleinberg, A., et al. 2022. Anal Biochem. 653: 114773. PMID: 35688259
  13. Thiol Catalysis of Selenosulfide Bond Cleavage by a Triarylphosphine.  |  Firstova, O., et al. 2022. J Org Chem. 87: 9426-9430. PMID: 35763672
  14. A procedure for quantitative determination of tris(2-carboxyethyl)phosphine, an odorless reducing agent more stable and effective than dithiothreitol.  |  Han, JC. and Han, GY. 1994. Anal Biochem. 220: 5-10. PMID: 7978256
  15. Solubilization of hydrophobic peptides by reversible cysteine PEGylation.  |  Pomroy, NC. and Deber, CM. 1998. Biochem Biophys Res Commun. 245: 618-21. PMID: 9571204

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

TCEP, Hydrochloride, 1 g

sc-203290
1 g
$88.00

TCEP, Hydrochloride, 25 g

sc-203290A
25 g
$832.00