L-Cystine CAS 56-89-3 99% Purity Solid for Medicine Product ISO Certified

Product Specifications

Addressing the Challenges of L-Cystine CAS 56-89-3 Supply in Industrial Manufacturing

We’ve witnessed countless production delays caused by inconsistent L-Cystine purity—fluctuations as small as 0.5% can trigger unexpected副反应 in pharmaceutical intermediate synthesis. Researchers repeatedly report failed experiments due to batch-to-batch variability, while manufacturers struggle with sudden price spikes that derail quarterly budgets. These industry-wide pain points inspired our commitment to redefining chemical supply reliability.

A Stable and Reliable Chemical Supply Solution

Our ISO-certified L-Cystine CAS 56-89-3 with 99% purity addresses these critical issues through a vertically integrated supply chain. Backed by a 10,000+ customer base spanning 50+ countries, we maintain dedicated production lines with a 20-ton annual capacity, ensuring consistent availability even during peak demand. The solid crystalline form guarantees easy handling and precise dosing in industrial processes, from specialty chemical synthesis to laboratory scale reactions.

Typical Industrial Applications

This high-purity L-Cystine serves as a key intermediate in pharmaceutical manufacturing, acting as a building block for active pharmaceutical ingredients (APIs) and biochemical reagents. Its industrial applications extend to the production of specialty polymers, where its disulfide bonds enhance material strength and stability. In research settings, it supports studies in protein chemistry and metabolic pathways—strictly for laboratory analysis, never for direct therapeutic use.

Why Key Specifications Matter

The 99% purity level is critical for minimizing impurity interference in sensitive reactions; trace contaminants can catalyze unwanted side reactions or reduce yields by up to 15% in large-scale synthesis. The precisely controlled melting point (260-261℃) ensures consistent thermal behavior during processing, while the defined boiling point (468.2±45.0°C) aids in purification protocols. Our stringent moisture control prevents degradation during storage, maintaining reactivity for extended shelf life—a vital factor for manufacturers managing just-in-time production schedules.

What You Gain With Our Product

Choosing our Medicine Grade L-Cystine 99% eliminates the hidden costs of substandard materials: reduced production rejects, fewer failed experiments, and predictable pricing through long-term supply agreements. Unlike non-certified alternatives, our ISO-compliant manufacturing process guarantees batch uniformity, supported by comprehensive testing that meets global industrial standards. This reliability translates to stabilized production timelines and improved profit margins—especially valuable in today’s volatile raw material market.

Why You Can Trust Us

Certificate of Analysis & Documentation

Every shipment includes a batch-specific COA with complete test results, including purity assay, heavy metal content, and physical properties. MSDS documents are provided in multiple languages, detailing safe handling and storage procedures. Customers can request additional documentation, including method validation reports and stability studies, to support regulatory compliance in their manufacturing processes.

Storage & Handling

• Store in a cool, dry, well-ventilated area, sealed and away from direct sunlight.
• Keep away from incompatible materials, food and feed sources.
• Handle with appropriate personal protective equipment (gloves, goggles, lab coat).
• Follow good industrial hygiene practices. Avoid inhalation and skin contact.
• Refer to MSDS for detailed storage and safety instructions.

How to Place Your Order

Initiate your procurement by submitting a detailed request specifying quantity, packaging requirements, and delivery timeline. We’ll provide a comprehensive quote within 24 hours, including technical data sheets and sample availability. For first-time customers, we recommend starting with a small batch to verify compatibility with your processes. Once specifications are confirmed, our production team ensures on-time delivery through our global logistics network, with full tracking provided from warehouse to destination.

Frequently Asked Questions