Chitosan oligosaccharide RCHOA

Chitosan oligosaccharide RCHOA
Chitosan oligosaccharide RCHOA
Chitosan oligosaccharide RCHOA



Product  Information

Chitosan oligosaccharide could be considered as water-soluble chitosan oligomer which is made from depolymerizing chitosan by enzyme hydrolysis. And its average molecular weight (≤3kDa) is muc lower than chitosan's (≥100KDa). The low molecular weight benefits prominent water solubility and bioactivities which attracting the interest of many researchers and companies to utilize chitooligosaccharide for agricultural applications.


COS (short for chitosan oligosaccharide) is a useful tool for the Integrated Pest Management (IPM). COS has shown to be effective elicitor of Induced Systemic Resistance (ISR) in plant which actives plants' natural defenses to boost plant vigor, improve plant health and yield parameters.


Product Code: RCHOA

English Name: Chitosan oligosaccharide, Chitooligosaccharide, Chitosan Oligomers, Chitooligomer, Oligochitosan, Chitosan Oligosaccharin, Chitosan Oligo Saccharins, COS.

Origin From: Crab shells

Molecular Formula: (C6H11NO4)nn=2~10

Structural Formula:


- Low Dosage (Optimal concentration ranging 50-100ppm);

- Non-toxic & Biological degradable - Free from chemical residues;

- Plant elicitor;

- High efficiency for crops, vegetables, turf, fruits & flowers.

Product Functions

1.  Activate Plant Defense Responses against Fungal, Bacterial, Vivus Diseases & Environment Stress

- Activate and induce plant immune reactions & plant self-defence machinery to increase the resistance ability under environment stress(heat, cold, drought, etc)

- Activate plants' defense response in the treated plants and stimulate additional biochemical pathways that strengthen the plant structure and act against the fungal, bacterial and vivus diesases.


2.  Promote Plant Growth and Enhance Yield Potential

- Promote plant seed germination and seeling growth

- Promote plant root, stalk and leaf growth  

- Promote plant fruit growth, and improve yield & profits  

- Mineral absorption accelerant


3.  Improve Soil Structure

- Prevente and Restrain nematodes

- Activating the growth of useful microbes, suppressing harmful microbes

- Restoration of soil ecology 

Product Show

- New biological fertilizers (plant growth regulator, foliar fertilizer, flushing fertilizer, seed coating agent) and biological pesticides,etc.

Test Items Specifications
Colour and lustre Yellow or tawny
Taste and smell No odor, no pungent odor
Solubility Soluble in water, insoluble in ethanol, propanol and other organic solvents.
Character Powder
Moisture  ≤10.0 %
Ash Content ≤1.0 %
Insoluble ≤1.0 %
pH value 4.5 - 7.0
Content ≥85 %
Molecular weight ≤3000 Da
DAC ≥85 %
As ≤2.0 mg/kg
Pb ≤5.0 mg/kg
Production Process
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