FOR INDUSTRIAL AND LABORATORY RESEARCH USE ONLY. NOT FOR DIRECT HUMAN CONSUMPTION, THERAPEUTIC OR HOUSEHOLD USE.
For industrial manufacturing and laboratory research purposes only.
Product Specifications
| Parameter | Value |
|---|
| Product Name | L-Cystine |
| CAS Number | 56-89-3 |
| Purity | 99% |
| Appearance | Solid |
| Molecular Formula | C6H12N2O4S2 |
| Melting Point | 260-261℃ |
| Boiling Point | 468.2±45.0 °C at 760 mmHg |
| Packaging | 25kgs (Foil-Alum Bag or Paper Drum); 250kg/drum or 1,250kg/IBC |
| Origin | Hangzhou |
| HS Code | 2930901000 |
| Production Capacity | 20t/Year |
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
Our quality assurance begins with raw material screening using HPLC and GC-MS analysis, followed by in-process testing at every production stage. Each batch undergoes NMR spectroscopy to verify structural integrity and impurity profiling, with results documented in a detailed Certificate of Analysis (COA). We maintain full traceability from extraction to delivery, and our 30-day replacement guarantee ensures you receive only compliant material. Our technical team provides personalized support, including assistance with storage optimization and process integration—backed by a decade of industry expertise.
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
Q: What is the shelf life of L-Cystine CAS 56-89-3 when properly stored?
A: When stored in original sealed packaging under recommended conditions, the product maintains stability for 24 months from the manufacturing date.
Q: Can this product be used directly in food, pharmaceutical, or cosmetic applications?
A: No. This product is strictly for industrial and laboratory research use only. It is not certified for direct human consumption, therapeutic, or household applications.
Q: What documentation is provided with each shipment?
A: Each order includes a Certificate of Analysis (COA) with batch-specific test results and a Material Safety Data Sheet (MSDS) in English.
Q: Do you offer custom packaging options beyond the standard sizes?
A: Yes, custom packaging solutions are available for bulk orders. Contact our sales team to discuss specific requirements.
Q: How is the product purity verified?
A: Purity is determined through HPLC analysis, with results typically exceeding 99.0%. Detailed chromatograms are available upon request for critical applications.
Usage Notice: Supplied exclusively for industrial manufacturing and laboratory research purposes. The buyer is fully responsible for complying with all local laws, regulations and safety requirements for its use.
Pharma Intermediates
