L-CARNITINE
L-Carnitine – Mitochondrial Lipid Transporter
At a Glance: L-Carnitine is a naturally occurring amino acid derivative fundamentally responsible for cellular energy metabolism and lipid transport. What it is used for: It is utilized in laboratory research to study enhanced fat oxidation, mitochondrial efficiency, and muscle recovery. In lab rat models, researchers study its ability to physically shuttle stubborn fatty acids directly into the mitochondria to be burned as cellular fuel, drastically upregulating energy output without central nervous system stimulation.
Product Overview
L-Carnitine is an essential metabolic compound synthesized in the body from the amino acids lysine and methionine. While it is naturally present in animal tissue, exogenous administration in research settings—particularly via high-bioavailability injection routes—allows researchers to bypass the restrictive absorption limits of the digestive tract. It acts as the biological "freight train" of the cell, carrying long-chain fatty acids across the impenetrable inner mitochondrial membrane. This makes it a foundational compound for studying diet-induced obesity, allowing researchers to observe amplified aerobic capacity, rapid lactic acid clearance, and extreme fat metabolism in active lab rats.
Technical Specifications
Molecular Formula: C7H15NO3
Molecular Weight: 161.20 g/mol
CAS Number: 541-15-1
Chemical Profile: (R)-3-Hydroxy-4-(trimethylammonio)butanoate (Quaternary ammonium compound)
Mechanism of Action
L-Carnitine drives metabolic efficiency through highly specific intracellular transport mechanisms:
Lipid Shuttling (CPT1 Activation): Acts as the essential substrate for Carnitine Palmitoyltransferase I (CPT1). This enzyme attaches L-Carnitine to long-chain fatty acids, allowing them to cross the mitochondrial membrane. Without sufficient L-Carnitine, these fats remain trapped in the cytosol and are stored rather than burned.
Mitochondrial ATP Production: Once inside the mitochondria, the fatty acids undergo beta-oxidation to generate massive amounts of ATP (cellular energy).
Metabolic Waste Clearance: Protects the cell by binding to and removing toxic metabolic byproducts (like acyl-CoA) generated during intense physical exertion. This significantly reduces localized lactic acid buildup and delays muscular fatigue.
Androgen Receptor Upregulation: In skeletal muscle tissue, high concentrations of L-Carnitine have been shown to increase the density of cellular androgen receptors, enhancing the tissue's receptivity to circulating anabolic hormones.
Primary Research Applications
L-Carnitine is a vital compound for in vitro and animal model studies focusing on:
Beta-oxidation of long-chain fatty acids and extreme lipid clearance
Aerobic endurance, lactic acid buffering, and delayed onset muscle soreness (DOMS)
Mitochondrial dysfunction and age-related metabolic decline
Androgen receptor density and muscle protein synthesis pathways
Storage & Handling
For optimal stability, pure L-Carnitine powder or sterile liquid solutions should be stored tightly sealed at 36°F to 46°F(2°C to 8°C). It is highly hygroscopic (absorbs moisture from the air), so it must be strictly protected from humidity and prolonged exposure to light.
⚠️ Important Disclaimer for Carbon Nova Labs Customers: All information provided is for educational and reference purposes only. L-Carnitine is sold strictly for laboratory research use only. This compound is not approved by the FDA for human consumption, therapeutic use, or clinical application. Ensure compliance with all institutional safety protocols and consult qualified professionals before conducting research.