Description

Hydroxypropyl Chitosan is a water-soluble, chemically modified derivative of chitosan, produced by introducing hydroxypropyl groups onto the chitosan backbone. This modification significantly enhances its solubility, biocompatibility, and film-forming properties compared to native chitosan, making it a highly versatile functional biopolymer. It is particularly valuable in the pharmaceutical, cosmetic, and biomedical industries for applications requiring advanced material performance.

Application

• Pharmaceutical Formulations: Used as a controlled-release matrix, mucoadhesive agent in drug delivery systems, and a stabilizer in suspensions and emulsions.
• Cosmetics & Personal Care: Functions as a film-forming agent, moisturizer, and viscosity enhancer in creams, lotions, hair care products, and advanced skincare formulations.
• Biomedical Engineering: Serves as a key component in wound dressings, tissue engineering scaffolds, and hydrogel systems due to its biocompatibility and biodegradability.
• Food Industry: Acts as a natural edible coating for fruits and vegetables to extend shelf life, and as a functional ingredient for texture modification.
• Agricultural Technology: Employed in seed coating and as a carrier for the controlled release of agrochemicals and fertilizers.

Basic Information

Product Name	Hydroxypropyl Chitosan
CAS No.	84069-44-3
Molecular Formula	(C6H11NO4)n • (C3H6O)x
Molecular Weight	Variable (Polymer)
Synonyms	HP-Chitosan; Hydroxypropylchitosan; Chitosan, 2-hydroxypropyl ether; N-(2-Hydroxypropyl)chitosan; Chitosan hydroxypropyl ether; 2-Hydroxypropyl chitosan; Water-soluble chitosan derivative; Chitosan propylene glycol ether
EINECS	Contact for details

Quality Control

Our Hydroxypropyl Chitosan is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, substitution degree, and performance characteristics. Certificates of Analysis (COA) detailing key parameters such as degree of deacetylation, hydroxypropyl substitution level, viscosity, and residual solvent content are available upon request.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	White to light yellow powder or flakes
Identification (IR)	Conforms
Degree of Deacetylation	≥ 80.0 %
Hydroxypropyl Substitution Degree	0.2 - 1.5 (Customizable)
Viscosity (1% solution)	10 - 5000 mPa·s (Customizable)
pH (1% solution)	5.0 - 7.5
Loss on Drying	≤ 10.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Microbiological Control	Contact for details

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