Description

Carboxymethyl Chitosan is a water-soluble, chemically modified derivative of chitosan, a natural biopolymer. This modification significantly enhances its solubility and broadens its utility in advanced applications where biocompatibility and functionality are critical. It is an essential material for industries requiring natural, non-toxic, and multifunctional polymers for product enhancement and formulation.

Application

• Pharmaceuticals & Drug Delivery: Used as a functional excipient for controlled-release tablets, wound healing gels, and as a carrier for targeted drug delivery systems.
• Cosmetics & Personal Care: Acts as a high-performance film-forming agent, moisturizer, and thickener in creams, lotions, and hair care products.
• Food Industry: Employed as a dietary fiber supplement, edible coating for food preservation, and a natural thickener or stabilizer.
• Biomedical Engineering: Serves as a key component in tissue engineering scaffolds, hydrogels, and bio-ink formulations for 3D bioprinting.
• Water Treatment: Functions as a natural, biodegradable flocculant for the removal of heavy metals and organic contaminants from wastewater.
• Agriculture: Used in seed coating, as a biostimulant to enhance plant growth, and in controlled-release formulations for fertilizers and pesticides.

Basic Information

Product Name	Carboxymethyl Chitosan
CAS No.	83512-85-0
Molecular Formula	(C8H13NO6)n
Molecular Weight	Variable (Polymer)
Synonyms	Carboxymethyl Chitosan; CM-Chitosan; O-Carboxymethyl Chitosan; N,O-Carboxymethyl Chitosan; Chitosan Carboxymethyl Ether; Chitosan, carboxymethylated; Poly(D-glucosamine-co-N-acetyl-D-glucosamine), carboxymethylated; Water-Soluble Chitosan Derivative
EINECS	Contact for details

Quality Control

Our Carboxymethyl Chitosan is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, degree of substitution, and functional performance. Certificates of Analysis (COA) detailing key parameters such as assay, viscosity, and moisture content are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Carboxymethyl Content)	≥ 80.0%
Degree of Deacetylation	≥ 85.0%
pH (1% Solution)	6.0 - 8.0
Viscosity (1% Solution)	10 - 500 mPa·s (Grade dependent)
Loss on Drying	≤ 10.0%
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Microbial Limits	Meets standard requirements

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