Description

Chondroitin Sulfate D CAS NO 50814-15-8 is a specific sulfated glycosaminoglycan (GAG) derived from animal cartilage, primarily valued for its role in maintaining the structural integrity and elasticity of connective tissues. This high-purity grade is essential for manufacturers requiring consistent bioactivity and reliable supply for critical formulations. It is a key raw material for the pharmaceutical, nutraceutical, and advanced biomedical industries, particularly in the production of joint health supplements, ophthalmic solutions, and drug delivery systems.

Application

• Pharmaceutical Active Ingredient: Core component in prescription and over-the-counter (OTC) medications for osteoarthritis and joint pain management.
• Dietary Supplement Formulation: Widely used in capsules, tablets, and softgels for human and veterinary joint health and mobility support products, often combined with glucosamine.
• Ophthalmic Surgery & Viscoelastic Agents: Serves as a visco-supplement in eye drops and surgical fluids to protect corneal endothelial cells during procedures like cataract surgery.
• Cosmeceuticals & Skincare: Incorporated into anti-aging and moisturizing formulations for its hydrating properties and ability to support skin matrix structure.
• Biomedical Research & Cell Culture: Used as a substrate or medium component in stem cell research, tissue engineering, and chondrocyte culture studies.
• Veterinary Medicine: Active ingredient in injectable and oral treatments for canine and equine degenerative joint disease.

Basic Information

Product Name	Chondroitin Sulfate D
CAS No.	50814-15-8
Molecular Formula	Typically (C13H21NO15S)n
Molecular Weight	Variable polymer (monomer ~ 500 Da)
Synonyms	Chondroitin Sulfate Type D; Chondroitin-4,6-Disulfate; Chondroitin Sulfate D Sodium Salt; CSA-D; CS-D; Galactosaminoglycan Sulfate; Chonsurid; Structum (brand name related); Condroitin Sulfato D
EINECS	Contact for details

Quality Control

Our Chondroitin Sulfate D is manufactured under strict quality systems. Each batch is tested to ensure it meets stringent specifications for identity, purity, potency, and safety, aligning with relevant pharmacopeial standards (e.g., USP, EP, JP). A comprehensive Certificate of Analysis (COA) documenting assay, sulfate content, specific rotation, heavy metals, residual solvents, and microbiological limits is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can lead to caking and degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (as dry basis)	≥ 95.0%
Sulfate Content	18.0% - 24.0%
Specific Rotation	-20° to -30°
Protein	≤ 6.0%
Heavy Metals (as Pb)	≤ 20 ppm
Loss on Drying	≤ 10.0%
Residue on Ignition	20.0% - 30.0%
Microbiological Limits	Meets USP/EP requirements

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