What is Chitosan Powder CAS 9012-76-4?

Chitosan Powder CAS 9012-76-4 is a linear cationic polysaccharide produced by deacetylating chitin, usually from crustacean shells. It is supplied as an off-white to light yellow powder or flake with the repeat-unit formula (C6H11NO4)n and is biodegradable, film-forming and chelating.

How is chitosan powder different from chitin?

Chitin is an acetylated natural polymer, while chitosan is obtained by removing enough acetyl groups to expose free amino sites. In dilute acid, those amino groups become protonated, giving chitosan a cationic charge and making it soluble in dilute acids such as acetic acid or lactic acid, unlike chitin.

Which degree of deacetylation grades are available?

This listing offers degree of deacetylation levels of at least 85.0%, 90.0% and 95.0%, with customization available. Higher deacetylation generally increases the number of free amine groups, acid solubility and cationic charge density, so the grade should be matched to the target application.

How should I choose the right viscosity grade?

Viscosity is usually measured in a dilute acid solution and is related to molecular weight. The available range is about 50-800 mPa.s and can be customized as low, medium or high; lower viscosity suits clearer or lower-thickness solutions, while higher viscosity is often selected for thicker solutions, films or flocculation.

What are the main uses of Chitosan Powder?

It is used as a bio-based coagulant or flocculant in water treatment, as a chelating and antimicrobial agent in food coatings, and in agriculture for seed treatment or soil improvement. Other applications include juice or wine clarification, papermaking and textile finishing.

How is Chitosan Powder dissolved and stored?

Chitosan is normally insoluble in neutral water and ordinary organic solvents, so it is dissolved in dilute acids such as acetic acid or lactic acid under agitation. Store it sealed in a cool, dry, well-ventilated area away from direct sunlight, moisture and strong oxidizers, and follow the supplier's shelf-life and packaging instructions.

Chitosan Powder CAS 9012-76-4

Chitosan Powder, CAS 9012-76-4, is a biodegradable cationic polysaccharide supplied in food, industrial and agricultural grades for antimicrobial coatings, juice and wine clarification, seed treatment, soil improvement and water-treatment flocculation. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 9012-76-4
Synonyms: Poly(D-glucosamine), Deacetylated chitin, Poliglusam, Beta-(1,4)-2-amino-2-deoxy-D-glucose
Einecs: 618-480-0
Molecular Formula: (C₆H₁₁NO₄)ₙ
Grade: Food Grade / Industrial Grade / Agriculture Grade
Package: 25kg Fiber Drum or Paper Bag with inner PE liner (Customizable)

Request a quote

Share:

Product Description

Chitosan Powder, CAS 9012-76-4, is a linear cationic polysaccharide produced by deacetylation of chitin, with repeat unit (C₆H₁₁NO₄)ₙ; the EC/EINECS number is 618-480-0.

Synonyms: poly(D-glucosamine); deacetylated chitin; poliglusam; beta-(1,4)-2-amino-2-deoxy-D-glucose.

CAS: 9012-76-4.

Molecular formula (repeat unit): (C₆H₁₁NO₄)ₙ.

It is a biodegradable polymer with molecular weight related to its solution viscosity.

EC number: 618-480-0.

It is an off-white to light yellow powder or flake, odorless and semi-transparent.

It is insoluble in neutral water and ordinary organic solvents but dissolves in dilute acids such as acetic or lactic acid.

Available deacetylation levels are at least 85.0%, 90.0% and 95.0%, with customization possible.

It is used as an antimicrobial coating, clarifying agent and thickener in food, juice and wine applications.

It is used in agriculture for seed coating, soil improvement and as a biopesticide or fungicide.

It is used in water treatment as a cationic flocculant and chelating agent for suspended solids and heavy metals.

It is used in papermaking, textile printing and dyeing, and other industrial applications.

Confirm deacetylation degree, viscosity, moisture, ash, pH, particle size, heavy metals, arsenic and acid insolubles.

Store sealed in a cool, dry, ventilated area away from direct sunlight, moisture and strong oxidizers.

Keep the container tightly closed after use to prevent oxidation and moisture absorption.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Chitosan Powder CAS 9012-76-4?

A: Chitosan Powder CAS 9012-76-4 is a linear cationic polysaccharide produced by deacetylating chitin, usually from crustacean shells. It is supplied as an off-white to light yellow powder or flake with the repeat-unit formula (C6H11NO4)n and is biodegradable, film-forming and chelating.
Q:
How is chitosan powder different from chitin?

A: Chitin is an acetylated natural polymer, while chitosan is obtained by removing enough acetyl groups to expose free amino sites. In dilute acid, those amino groups become protonated, giving chitosan a cationic charge and making it soluble in dilute acids such as acetic acid or lactic acid, unlike chitin.
Q:
Which degree of deacetylation grades are available?

A: This listing offers degree of deacetylation levels of at least 85.0%, 90.0% and 95.0%, with customization available. Higher deacetylation generally increases the number of free amine groups, acid solubility and cationic charge density, so the grade should be matched to the target application.
Q:
How should I choose the right viscosity grade?

A: Viscosity is usually measured in a dilute acid solution and is related to molecular weight. The available range is about 50-800 mPa.s and can be customized as low, medium or high; lower viscosity suits clearer or lower-thickness solutions, while higher viscosity is often selected for thicker solutions, films or flocculation.
Q:
What are the main uses of Chitosan Powder?

A: It is used as a bio-based coagulant or flocculant in water treatment, as a chelating and antimicrobial agent in food coatings, and in agriculture for seed treatment or soil improvement. Other applications include juice or wine clarification, papermaking and textile finishing.
Q:
How is Chitosan Powder dissolved and stored?

A: Chitosan is normally insoluble in neutral water and ordinary organic solvents, so it is dissolved in dilute acids such as acetic acid or lactic acid under agitation. Store it sealed in a cool, dry, well-ventilated area away from direct sunlight, moisture and strong oxidizers, and follow the supplier's shelf-life and packaging instructions.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

Current Language

Change Language