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Phospho(enol)pyruvic acid monopotassium salt

≥97% (enzymatic)

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2-(Phosphonooxy)-2-propenoic acid monopotassium salt, mono-Potassium phosphoenolpyruvate, PEP-K
Empirical Formula (Hill Notation):
CAS Number:
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Quality Level


≥97% (enzymatic)




water: 100 mg/mL, clear, colorless

storage temp.


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InChI key


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General description

Phospho(enol)pyruvic acid (PEP) acts as an inhibitor of hexokinase, phosphoglucose isomerase, phosphofructokinase and aldolase. It is a bifunctional carbohydrate, which exhibits antioxidant property. PEP may be a potential organ preservation agent in clinical transplantation.


Phospho(enol)pyruvic acid monopotassium salt has been used:
  • to maintain a constant concentration of adenosine triphosphate (ATP) for active gel assembly
  • as a component in assay buffer for in vitro ATPase assay
  • as a stock solution for optical trapping assay

Biochem/physiol Actions

Phospho(enol)pyruvic acid (PEP) is involved in glycolysis and gluconeogeneis. In glycolysis, PEP is metabolized by Pyruvate Kinase to yield pyruvate. In plants, PEP is involved in the formation of aromatic amino acids as well as in the carbon fixation pathway.

Storage Class

13 - Non Combustible Solids




Not applicable


Not applicable


Eyeshields, Gloves, type N95 (US)

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Alan Cahill et al.
Methods in molecular biology (Clifton, N.J.), 447, 381-394 (2008-03-29)
Chronic alcohol consumption has been shown to severely compromise mitochondrial protein synthesis. Hepatic mitochondria isolated from alcoholic animals contain decreased levels of respiratory complexes and display depressed respiration rates when compared to pair-fed controls. One underlying mechanism for this involves
W J Bettger et al.
Proceedings of the National Academy of Sciences of the United States of America, 78(9), 5588-5592 (1981-09-01)
A serum-free, hormone-supplemented medium, enriched with a mixture of lipids, has been developed that supports rapid clonal growth of human diploid fetal lung fibroblasts (Flow 2000, WI-38, MRC-5, and IMR-90) and of low-passage human foreskin fibroblasts. The medium, which contains
Phosphoenolpyruvic acid, an intermediate of glycolysis, attenuates cellular injury induced by hydrogen peroxide and 2-deoxy-D-glucose in the porcine proximal kidney tubular cell line, LLC-PK1
Kondo Y, et al.
Journal of Health Science, 56(6), 727-732 (2010)
Single Molecule Analysis (2018)
Investigation of the reaction between phosphoenolpyruvic acid and thiosulfate-nitrosyl iron complex
Zanina AA, et al.
Russian Chemical Bulletin, 66(5), 927-931 (2017)


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