Carboxymethyl chitosan CAS 83512-85-0

Product Name: Carboxymethyl Chitosan
English Alias: CMCS; O-Carboxymethyl Chitosan
CAS Number: 83512-85-0
Molecular Formula: (C₆H₁₁O₄N)n·(CH₂COONa)m
Molecular Weight: Variable (Polymer)
Appearance: White to off-white powder
Package: 1 kg/bag, 5 kg/bag (double sealed aluminum bags with desiccant)

What is Carboxymethyl Chitosan？

Carboxymethyl Chitosan is a water-soluble chitosan derivative obtained by introducing carboxymethyl groups onto the chitosan molecular chain. It appears as a white to off-white odorless powder with excellent water solubility, film-forming ability, and biodegradability. The compound exhibits enhanced biological compatibility and functionality compared to native chitosan, making it valuable in biomedical and cosmetic applications.

COA (Certificate of Analysis):

检验项目 Items	规格 Specification	结果 Results
外观 Appearance	类白色或淡黄色的片状或粉末 Off-White or light yellow flake or powder	淡黄色粉末 Light yellow powder
水分 Moisture	≤10.0%	6.62%
粘度 Viscosity	≤80mpa·s	11mpa.s
酸碱度 pH	7.0-10.0	9.58
不溶物 Insoluble matter	≤1.0%	<1.0%
结论 Conclusion	qualified

Application:

1. Biomedical: Wound dressing material and drug delivery carrier

2. Cosmetics: Moisturizing agent and film-former in skincare products

3. Food Industry: Food preservative and thickening agent

4. Water Treatment: Flocculant for wastewater treatment

5. Agriculture: Biodegradable film for controlled-release fertilizers

6. Textile Industry: Functional finishing agent for fabrics

Safety Profile:

Carboxymethyl Chitosan is generally recognized as safe (GRAS) for various applications. May cause mild eye irritation. Use appropriate personal protective equipment including dust mask and safety glasses when handling. The substance is biodegradable and environmentally friendly. For detailed safety information, consult the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area away from direct sunlight. Keep containers tightly sealed and protected from moisture. Maintain storage temperature below 30°C. Relative humidity below 60% recommended.

Transport & Packaging:

Carboxymethyl Chitosan is packaged in double-sealed aluminum bags with desiccant (1 kg or 5 kg net weight per bag), placed in sturdy outer containers. Transport as non-hazardous material under normal conditions. Ensure containers are properly sealed and protected from moisture during transportation. Store away from incompatible materials.