Acetylglutamine
Overview
Acetylglutamine (N-Acetyl-L-glutamine) is a modified form of the amino acid glutamine, where an acetyl group is attached to its molecular structure. This modification enhances its stability and bioavailability, making it a preferred choice in medical and nutritional applications. The compound is synthesized through acetylation of L-glutamine and is widely utilized in pharmaceuticals and research due to its neuroprotective and metabolic properties. Unlike free glutamine, acetylglutamine is less prone to degradation in the digestive tract, allowing for more efficient absorption. Its role in supporting brain health, immune function, and energy metabolism has been studied extensively, particularly in contexts like stroke recovery and neurodegenerative diseases.
Physical and Chemical Properties
Acetylglutamine appears as a white, odorless crystalline powder with a molecular weight of 188.18 g/mol. It is soluble in water and slightly soluble in ethanol, with a melting point around 185-190°C (with decomposition). The compound is stable under standard storage conditions but should be protected from prolonged exposure to moisture or extreme temperatures to prevent degradation. Its acetyl group confers greater resistance to enzymatic breakdown compared to free glutamine, which is advantageous for oral or injectable formulations. The pH of its aqueous solutions is typically neutral, making it compatible with most pharmaceutical excipients.
Main Applications
In pharmaceuticals, acetylglutamine is primarily used for its neuroprotective effects, particularly in treating ischemic brain injuries and cognitive disorders. It aids in maintaining glutamate balance, reducing oxidative stress, and supporting mitochondrial function. Clinically, it has been explored for stroke rehabilitation and Alzheimer’s disease management. Beyond medicine, it is incorporated into sports nutrition and dietary supplements to enhance muscle recovery and gut health. In biochemical research, acetylglutamine serves as a stable glutamine source for cell culture media, avoiding the ammonia buildup associated with free glutamine degradation.
Safety and Storage
Acetylglutamine is classified as non-toxic and generally safe for human consumption at recommended dosages. However, industrial handlers should minimize dust inhalation by using appropriate PPE (masks, gloves) to avoid respiratory or skin irritation. No significant environmental hazards are associated with this compound. For storage, keep containers tightly sealed in a cool (below 25°C), dry environment away from direct sunlight. Bulk quantities should be stored in inert, moisture-proof packaging to prevent clumping or chemical degradation over time. Shelf life typically exceeds two years when stored correctly.
B2B Procurement Guide
When sourcing acetylglutamine, prioritize suppliers with certifications such as GMP, ISO 9001, or USP verification to ensure pharmaceutical-grade quality. Key specifications to verify include purity (≥98%), heavy metal content (<10 ppm), and residual solvent levels. Request COA (Certificate of Analysis) and stability data for each batch. Pricing varies based on order volume and purity; bulk purchases (100+ kg) often reduce costs by 10-20%. Consider suppliers offering customized packaging (e.g., aluminum foil bags for moisture protection) and logistics support for temperature-sensitive shipments. Sample testing for consistency in solubility and particle size is advisable before large-scale procurement.
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