For professionals in the chemical, pharmaceutical, cosmetic, and food industries, a thorough understanding of key raw materials is essential for innovation and efficient production. L-Cystine (CAS 56-89-3) is one such indispensable amino acid, prized for its unique chemical properties and wide-ranging applications. As a prominent manufacturer and supplier of L-Cystine in China, we provide insights into its characteristics, production, and the advantages of securing your supply from a dependable source.

L-Cystine is fundamentally an amino acid dimer, formed by the oxidation of two L-cysteine molecules, linked by a disulfide bond (-S-S-). This disulfide bond is key to its stability and functionality. It presents as a white crystalline powder with a high melting point (around 260-261°C with decomposition), indicating its thermal stability under typical processing conditions. Its solubility is limited in water but better in acidic and alkaline solutions. The high purity of L-Cystine, typically exceeding 98.5% (HPLC), is critical for its performance in demanding applications such as pharmaceutical intermediates and high-quality cosmetic formulations.

Modern production of L-Cystine increasingly favors fermentation processes, often utilizing plant-based raw materials like corn. This biotechnological approach offers significant advantages over older, chemical extraction methods, including greater sustainability, reduced environmental impact, and the production of non-GMO and vegetarian-friendly material. As a leading chemical manufacturer, we have adopted these advanced production techniques to ensure a consistent supply of high-quality L-Cystine. Our production capacity, often in the range of hundreds of tons per month, allows us to meet large-scale B2B demands.

When considering where to buy L-Cystine, prospective buyers, including procurement managers and R&D scientists, should prioritize manufacturers with robust quality control systems and a proven track record. Sourcing from China, particularly from established suppliers, offers access to competitive L-Cystine prices and a vast manufacturing ecosystem. We aim to be your trusted L-Cystine supplier, offering not only competitive pricing but also comprehensive technical support and reliable logistics. Understanding the global supply chain for essential chemicals like L-Cystine allows businesses to make informed procurement decisions, ensuring product quality and operational efficiency.

By delving into the properties and production of L-Cystine, businesses can better appreciate its value. We invite you to explore how our high-purity L-Cystine can benefit your formulations and to connect with us for your sourcing needs. As a dedicated manufacturer, we are here to support your business with excellence in both product and service.