Description

Cyclocystine CAS NO 20711-00-6 is a specialized cyclic disulfide compound of significant interest in advanced organic synthesis and biochemical research. Its unique constrained structure makes it a valuable building block for developing novel pharmaceuticals, peptide mimetics, and materials with specific redox-active properties. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors seeking to innovate in drug discovery and molecular design.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting diseases involving oxidative stress or requiring disulfide bridge motifs.
• Peptide Chemistry & Mimetics: Used to introduce constrained, cyclic disulfide structures into peptides to enhance stability, bioavailability, and biological activity.
• Biochemical Research: Employed as a model compound or reagent in studies of disulfide bond formation, protein folding, and redox biology.
• Material Science: Acts as a cross-linking agent or functional monomer in the development of polymers with responsive or self-healing properties.
• Catalysis & Ligand Synthesis: Utilized in the preparation of specialized ligands for metal catalysis, leveraging its sulfur donor atoms.
• Reference Standard: Supplied as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	Cyclocystine
CAS No.	20711-00-6
Molecular Formula	C6H12N2O4S2
Molecular Weight	240.30 g/mol
Synonyms	L-Cystine, cyclic; 3,6-Dithia-1,8-diazacyclodecane-2,5,7,10-tetrone; Cyclic L-Cystine; Cyclic Cystine; 1,2-Dithiane-4,5-dicarboxamide, 3,6-dihydro-, (4R,5R)-rel-; (4R,5R)-rel-3,6-Dihydro-1,2-dithiane-4,5-dicarboxamide
EINECS	Contact for details

Quality Control

Our Cyclocystine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification by spectroscopic methods (IR, NMR), purity assay by HPLC, and control of specific impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your research or cGMP guidelines for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Specific Rotation	Contact for details
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.