For professionals in the chemical, pharmaceutical, and nutritional industries, understanding the precise specifications of a raw material is fundamental to its successful application. D-Methionine (CAS RN: 348-67-4) is an essential amino acid valued for its unique properties. As a reputable manufacturer and supplier of D-Methionine, we provide comprehensive details on its chemical profile to ensure our clients can make informed purchasing decisions. When you need to buy D-Methionine powder, knowing its specifications guarantees suitability for your processes.

The appearance of our D-Methionine is consistently described as a white to off-white fine crystalline powder. This physical characteristic is the first indication of its purity and quality. Beyond its visual attributes, D-Methionine is defined by a series of critical chemical parameters that dictate its performance in various applications. A key specification is its assay, which we guarantee to be between 98.5% and 101.0%. This high assay ensures that the concentration of active D-Methionine is reliably high, crucial for precise formulation in pharmaceuticals and nutraceuticals.

Further underscoring its quality are the limits set for impurities. The loss on drying is kept to a minimum, not exceeding 0.3%, indicating low moisture content which is vital for product stability and shelf-life. Similarly, the residue on ignition, expressed as sulfate, is controlled to be no more than 0.1%, reflecting minimal inorganic impurities. Other critical parameters include limits for chloride (not more than 0.03%), sulfate (not more than 0.03%), heavy metals (as Pb, not more than 10ppm), iron (as Fe, not more than 10ppm), and ammonium (not more than 0.02%). These stringent controls ensure the safety and efficacy of D-Methionine in its intended uses.

The specific rotation, an indicator of optical purity, is typically measured between -23.0° to -25.0° (c= 8, 6M-HCl), confirming the presence of the D-isomer. Additionally, the L-isomer content is strictly controlled to be no more than 0.5%, further ensuring the chiral purity of the product. These detailed D-Methionine chemical specifications are vital for researchers and product developers who rely on precise ingredient profiles.

For those seeking a dependable D-Methionine supplier in China, our commitment to quality assurance means that every batch adheres to these rigorous standards. We offer competitive D-Methionine prices for bulk purchases, making high-quality D-Methionine accessible for your industrial needs. Understanding these specifications empowers you to select the right product for your pharmaceutical, nutraceutical, or research applications. Contact us to receive a detailed Certificate of Analysis for our D-Methionine and to discuss your bulk purchasing requirements.