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 in water and broadens its compatibility and functionality across diverse industrial and pharmaceutical applications. It is particularly valued in the personal care, biomedical, and food technology sectors for its excellent film-forming, moisturizing, and biocompatible properties.

Application

• Cosmetics & Personal Care: Acts as a high-performance film-forming agent, moisturizer, and viscosity modifier in creams, lotions, hair care products, and makeup.
• Pharmaceuticals & Drug Delivery: Utilized as a biocompatible excipient for controlled-release tablets, wound healing dressings, and as a carrier for targeted drug delivery systems.
• Food Industry: Functions as a safe edible coating to extend shelf-life of fruits and vegetables, and as a thickener or stabilizer in certain food products.
• Biomedical Engineering: Serves as a scaffold material in tissue engineering due to its biodegradability and ability to support cell growth.
• Agriculture: Used in seed coating and as a biodegradable matrix for the slow release of fertilizers or pesticides.
• Water Treatment: Employed as a flocculant or adsorbent for the removal of specific contaminants from industrial wastewater.

Basic Information

Product Name	Hydroxypropyl Chitosan
CAS No.	104673-29-2
Molecular Formula	(C6H11NO4 • C3H6O)n
Molecular Weight	Variable (Polymer)
Synonyms	HP-Chitosan; Chitosan, 2-hydroxypropyl ether; Hydroxypropylchitosan; N-(2-Hydroxypropyl)chitosan; Chitosan hydroxypropyl ether; Water-Soluble Chitosan Derivative; Modified Chitosan
EINECS	Contact for details

Quality Control

Our Hydroxypropyl Chitosan is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, substitution degree, and performance. We provide Certificates of Analysis (COA) with key parameters including assay, moisture content, heavy metals, and microbial limits. Specifications can be aligned with customer requirements for pharmaceutical (non-compendial), cosmetic, or food-grade applications.

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); ensure the container is sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to light yellow powder or flakes
Identification (IR)	Conforms
Assay (as Chitosan base)	≥ 85.0%
Degree of Substitution	0.2 - 1.5 (Customizable)
Moisture Content	≤ 10.0%
pH (1% Solution)	5.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines
Total Microbial Count	≤ 1000 cfu/g

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