• USA Home
  • A2181 - Acetyl coenzyme A lithium salt

A2181 Sigma

Acetyl coenzyme A lithium salt

≥93% (HPLC)

Synonym: Acetyl-CoA, Acetyl-S-CoA Li3



Related Categories Biochemicals and Reagents, Cell Biology, Coenzyme A and Other Acyl Transfer Reagents, Cofactors, Core Bioreagents,
Quality Level   PREMIUM
assay   ≥93% (HPLC)
solubility   H2O: soluble100 mg/mL, clear, colorless
storage temp.   −20°C
Gene Information   human ... CHAT(1103), HAT1(8520), KAT2A(2648), KAT2B(8850), KAT5(10524)
mouse ... HAT1(107435), KAT2A(14534), KAT2B(18519), KAT5(81601)
rat ... HAT1(296501), KAT2A(303539), KAT2B(301164), KAT5(192218)



An essential cofactor in enzymatic acetyl transfer reactions.

Acetyl coenzyme A is suitable in CAT reporter assay for the measurement of chloramphenicol acetyltransferase by incubating the cell extract with 0.1 μCi [14C] chloramphenicol and 0.5mM acetyl-CoA.

Biochem/physiol Actions

Acetyl-CoA is an essential cofactor and carrier of acyl groups in enzymatic acetyl transfer reactions. It is formed either by the oxidative decarboxylation of pyruvate in mitochondria, by the oxidation of long-chain fatty acids, or by the oxidative degradation of certain amino acids. Acetyl-CoA is the starting compound for the citric acid cycle (Kreb′s cycle). It is also a key precursor in lipid biosynthesis, and the source of all fatty acid carbons. Acetyl-CoA positively regulates the activity pyruvate carboxylase. It is a precursor of the neurotransmitter acetylcholine. Histone acetylases (HAT) use Acetyl-CoA as the donor for the acetyl group use in the post-translational acetylation reactions of histone and non-histone proteins.

Alterations in the gene encoding acetyl-CoA have been linked to Alzheimer′s disease and mild cognitive impairment. Defects in the gene cause myasthenic syndrome associated with episodic apnea.

Other Notes

For more more technical information and a complete list of Coenzyme A deriviatives visit the Acyl Transfer Reagents Resource.


1, 5 mg in glass bottle

10, 25, 100 mg in poly bottle

Preparation Note

Prepared enzymatically


Acetyl CoA is soluble in deionized water at 100 mg/mL. Acetyl CoA is stable in neutral and moderately acidic solutions but will hydrolyze in alkaline and strongly acidic solutions. Aqueous solutions stored in single-use aliquots are stable for up to two weeks at −20°C and up to 6 months at −80°C.

Physical properties

This moisture-sensitive powder should be stored desiccated at −20°C.

Price and Availability

All labs need water
Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Protocols & Articles


Citric Acid Cycle

Acetyl-CoA enters a cycle whose discovery by Hans Krebs 70 years ago marked a milestone in biochemistry. The citric acid cycle is also termed the tricarboxylic acid cycle, TCA cycle or Krebs cycle (s...
BioFiles 2007, 2.6, 16.
Keywords: Addition reactions, Biochemistry, Biofiles, Catalysis, Citric Acid Cycle, Decarboxylations, Dehydration reaction, Hydration reaction, Metabolites, Oxidations, Phosphorylations

Mitochondrial Dysfunction and Metabolic Defects

Defects in mitochondrial function are associated with insulin resistance in both human and animal studies. Insulin resistance is associated with a decrease in the number, oxidative capacity, size, an...
Keywords: Acetylations, Apoptosis, Biofiles, Cancer, Carboxylations, Catalog, Catalysis, Citric Acid Cycle, Decarboxylations, Degradations, Diabetes, Enzyme-linked immunosorbent assay, Glycolysis, Immunofluorescence, Immunohistochemistry, Lipid Metabolism, Metabolism, Metabolites, Neurotransmitters, Obesity, Oxidations, Phosphorylations, Physiological Processes, Protocols, Transcription, Transduction, Transfection, Western blot

Pyruvate Transformations

Depending on the environmental conditions, e.g. whether oxygen is present or not, pyruvate, a product of glucose metabolism, can undergo different biotransformations as shown in Figure 2. Under reduc...
BioFiles 2007, 2.6, 10.
Keywords: Anaerobic, Biofiles, Catalysis, Environmental, Metabolism

Peer-Reviewed Papers


Set your institution to view full text papers.
Related Products

related product

Product #


Add to Cart

92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?