Description

Unsaturated Chondroitin Disaccharide 4-S Sodium is a defined, high-purity oligosaccharide derivative of chondroitin sulfate, a key structural component of connective tissues. This compound serves as a critical reference standard and building block for research and development in glycosaminoglycan (GAG) analysis and synthesis. It is essential for scientists and manufacturers in the pharmaceutical, nutraceutical, and advanced biomaterials sectors who require precise molecular tools for quality control, metabolic pathway studies, and the development of novel therapeutics.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and impurity profiling of chondroitin sulfate in drug substances and finished products.
• Biochemical Research: Serves as a substrate or inhibitor in enzymatic studies to investigate chondroitinase and sulfatase activities.
• Glycomics & Analytical Chemistry: A critical calibrant for advanced analytical techniques like HPLC, LC-MS, and CE for characterizing complex polysaccharide structures.
• Nutraceutical Quality Control: Employed to authenticate and standardize chondroitin sulfate raw materials used in dietary supplements.
• Drug Discovery: Acts as a precursor or model compound for developing new anti-inflammatory, osteoarthritis, and wound-healing agents.
• Biomaterial Engineering: Utilized in the design and functionalization of hydrogels and scaffolds for tissue engineering and regenerative medicine.

Basic Information

Product Name	Unsaturated Chondroitin Disaccharide 4-S Sodium
CAS No.	51449-07-1
Molecular Formula	C14H19NNaO14S
Molecular Weight	504.36 g/mol
Synonyms	δDi-4S Sodium Salt; Chondroitin Disaccharide δDi-4S Sodium; 2-Acetamido-2-deoxy-3-O-(β-D-gluco-4-enepyranosyluronic acid)-4-O-sulfo-D-galactose Sodium Salt; 4-Sulfated Unsaturated Chondroitin Disaccharide Sodium; Sodium (2S,4S,5R)-2-[(2S,3R,4S,5R,6R)-3,4-Dihydroxy-6-(hydroxymethyl)-5-sulfooxyoxan-2-yl]oxy-4-hydroxy-5-[(1-hydroxyethylidene)amino]-6-(sulfooxymethyl)oxane-3-carboxylate; ADi-4S Na; CAS 51449-07-1
EINECS	Contact for details

Quality Control

Our Unsaturated Chondroitin Disaccharide 4-S Sodium is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (NMR, IR), to ensure it meets high-purity standards suitable for research and analytical applications. Certificates of Analysis (COA) with detailed chromatographic data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive). Allow the sealed vial to equilibrate to room temperature before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Specific Rotation	Contact for details

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