For scientists, researchers, and procurement managers operating in the pharmaceutical, biotechnology, and chemical industries, the reliable sourcing of essential chemical compounds is a cornerstone of successful operations. D-Arginine, identified by its CAS number 157-06-2, is one such compound. Whether you are seeking it for complex biochemical assays, pharmaceutical intermediate synthesis, or novel drug discovery, understanding where to buy D-Arginine and what influences its price and purity is critical.

D-Arginine is the D-stereoisomer of the naturally occurring amino acid L-arginine. This stereochemical difference is profound in biological contexts. While L-arginine is a key player in protein synthesis and the production of vital signaling molecules like nitric oxide (NO), D-arginine often exhibits different metabolic fates and biological activities. In many systems, it is resistant to degradation by common enzymes that process L-amino acids, making it a valuable tool for researchers studying metabolic pathways, enzyme kinetics, and signaling cascades where stereospecificity is paramount. It is frequently used as an inactive control in NO pathway research, helping to isolate the specific functions of L-arginine.

The purity of D-Arginine is a paramount consideration for its applications. Typically, D-Arginine is supplied as a white crystalline powder. For pharmaceutical intermediates and rigorous research, assay values of 98.0%, 98.5%, or even 99.0% and above are commonly required. Impurities, such as the L-isomer or other related amino acids, can significantly impact experimental outcomes or drug synthesis efficacy. Therefore, it is vital to procure D-Arginine from suppliers who provide comprehensive Certificates of Analysis (CoA) detailing the purity, specific rotation, moisture content, and the levels of known impurities.

When considering the D-Arginine price, several factors come into play. The cost is heavily influenced by the purity grade, the quantity purchased, and the geographical origin of the manufacturer. Suppliers based in regions with strong chemical manufacturing infrastructure, such as China, often offer competitive pricing for high-purity D-Arginine, particularly for bulk orders. This makes them an attractive option for companies looking to optimize their procurement costs without compromising on quality.

To buy D-Arginine effectively, it is advisable to approach specialized chemical suppliers and manufacturers. Online platforms and industry directories can provide lists of potential vendors. When you request a quote, be specific about your needs: the required CAS number (157-06-2), the desired purity level, the quantity, and any specific packaging or documentation requirements. Comparing quotes from several reputable suppliers will help you secure the best combination of price, quality, and reliability.

Ultimately, finding a trusted D-Arginine supplier is about ensuring the integrity of your research and development efforts. By focusing on purity, understanding pricing dynamics, and leveraging the capabilities of established manufacturers, you can confidently source the D-Arginine necessary for your critical applications.