AICAR 50mg research peptide vial
RUO

AICAR 50mg

AICAR (5-Aminoimidazole-4-Carboxamide Ribonucleotide)

Purity 98%+
Form Lyophilized Powder
Molecular Weight 258.23 g/mol
CAS Number See COA
Dosage: 50mg
Also known as: AICAR, Acadesine, Aminoimidazole Carboxamide Riboside, ZMP precursor
Sequence: Non-peptide nucleoside analogue
Research Areas
AMPK Activation Exercise Mimetics Metabolic Research Ischemia Protection
Buy at Research Vials

Overview

AICAR (5-aminoimidazole-4-carboxamide riboside, also known as acadesine) is a naturally occurring nucleoside that is an intermediate in de novo purine biosynthesis. When administered exogenously, AICAR is taken up by cells and phosphorylated by adenosine kinase to form ZMP (AICAR monophosphate), which is a direct allosteric activator of AMP-activated protein kinase (AMPK). AMPK is the master cellular energy sensor that responds to low ATP/high AMP ratios. When activated, AMPK switches on catabolic pathways that generate ATP (fatty acid oxidation, glucose uptake, autophagy) while switching off ATP-consuming anabolic pathways (protein synthesis, lipogenesis, gluconeogenesis). AICAR mimics a low-energy state in the cell, activating AMPK without actually depleting cellular ATP. Narkar et al. published a landmark paper in Cell (2008) showing that AICAR enhanced running endurance by 44% in sedentary mice without any exercise training. This was the first demonstration that a pharmacological AMPK activator could mimic specific endurance exercise benefits, earning AICAR the designation as an 'exercise mimetic.' AICAR also has clinical research history: it was studied in Phase III trials (AMISTAD) for reducing ischemia-reperfusion injury during cardiac surgery.

Mechanism of Action

AICAR (5-aminoimidazole-4-carboxamide riboside, also known as acadesine) is a naturally occurring nucleoside that is an intermediate in de novo purine biosynthesis. When administered exogenously, AICAR is taken up by cells and phosphorylated by adenosine kinase to form ZMP (AICAR monophosphate), which is a direct allosteric activator of AMP-activated protein kinase (AMPK). AMPK is the master cellular energy sensor that responds to low ATP/high AMP ratios. When activated, AMPK switches on catabolic pathways that generate ATP (fatty acid oxidation, glucose uptake, autophagy) while switching off ATP-consuming anabolic pathways (protein synthesis, lipogenesis, gluconeogenesis). AICAR mimics a low-energy state in the cell, activating AMPK without actually depleting cellular ATP. Narkar et al. published a landmark paper in Cell (2008) showing that AICAR enhanced running endurance by 44% in sedentary mice without any exercise training. This was the first demonstration that a pharmacological AMPK activator could mimic specific endurance exercise benefits, earning AICAR the designation as an 'exercise mimetic.' AICAR also has clinical research history: it was studied in Phase III trials (AMISTAD) for reducing ischemia-reperfusion injury during cardiac surgery.

Key Research Findings

  • Narkar et al. (2008) demonstrated AICAR increased running endurance by 44% in sedentary mice without exercise, establishing it as the first proven pharmacological exercise mimetic.
  • Winder & Hardie (1999) showed AICAR activates AMPK in skeletal muscle, increasing fatty acid oxidation and glucose uptake.
  • Mangano et al. (1997) reported the AMISTAD Phase III trial showing IV acadesine (AICAR) reduced adverse cardiac outcomes after coronary artery bypass graft surgery.
  • Merrill et al. (1997) demonstrated AICAR's cardioprotective effects during ischemia involve adenosine receptor-mediated mechanisms in addition to AMPK activation.

Citations & References

1

AMPK and PPARdelta agonists are exercise mimetics

Narkar VA, Downes M, Yu RT, et al. — Cell (2008)

2

AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes

Winder WW, Hardie DG. — Am J Physiol (1999)

3

Post-reperfusion myocardial infarction: long-term survival improvement using adenosine regulation with acadesine

Mangano DT, Miao Y, Tudor IC, Dietzel C. — J Am Coll Cardiol (2006)

Dosage in Research

Mouse exercise studies used 500 mg/kg/day for 4 weeks. Cardiac surgery trials used IV infusions of 0.1 mg/kg/min. Cell culture studies use 0.5-2 mM.

Dosage information is derived from published research literature and is presented for educational purposes only. This is not medical advice. All products are for laboratory research use only.

Storage & Handling

Store lyophilized (freeze-dried) powder at -20°C to 4°C in a dry environment protected from light. Unreconstituted peptide is stable for extended periods when stored properly.

Once reconstituted with bacteriostatic water or an appropriate solvent, store at 2-8°C and use within the timeframe specified on the Certificate of Analysis. Avoid repeated freeze-thaw cycles.

A Certificate of Analysis documenting purity, identity, and recommended storage conditions is included with every order.

Frequently Asked Questions

What is AICAR 50mg?
5-Aminoimidazole-4-carboxamide ribonucleotide, a cell-permeable AMPK activator researched as an exercise mimetic and for its effects on glucose uptake and fatty acid oxidation.
What purity is your AICAR 50mg?
Our AICAR 50mg is manufactured at 98%+ purity, verified through third-party HPLC analysis and mass spectrometry. A Certificate of Analysis (COA) is included with every order.
How should I store AICAR 50mg?
Store lyophilized powder in a cool, dry place at 2-8°C away from direct light. Once reconstituted, refrigerate and use within the timeframe specified on the COA.
Is AICAR 50mg for human use?
No. AICAR 50mg is sold strictly for laboratory research use only. It is not intended for human consumption, veterinary use, or as a food additive. Products have not been evaluated by the FDA. Purchasers must be 21+ and confirm research use intent.
Where can I buy AICAR 50mg?
AICAR 50mg is available for purchase at researchvials.com. All orders include a COA and ship with temperature-controlled packaging.

Research Use Only

All products are intended for laboratory research and educational purposes only. Products have not been evaluated by the FDA and are not intended for human consumption, diagnosis, treatment, or prevention of any disease. Purchasers must be 21+ and confirm research use intent.