Quick Facts
Trade name:Chitosan Oligosaccharide (COS) Agricultural Grade
Chemical Name:Chitosan Oligosaccharide
CAS:148411-57-8
Molecular Formula:(C6H11NO4)n(n=2~10)
Molecular Weight: ≤1,500 Da
Solubility:Water-soluble
Source:Shrimp,Crab shells
H.S Code:39139090
Chitosan Oligosaccharide Agriculture Grade – Bulk supplier and Exporter
Chitosan Oligosaccharide (COS) Agriculture Grade is a natural, water-soluble oligosaccharide derived from chitosan. With low molecular weight (≤3kDa)and high bioactivity, it is widely used in agriculture to enhance plant growth, improve stress resistance, and promote nutrient absorption.
Key Features
High Water Solubility
Fully dissolves in water for foliar or soil applications.
Bioactive & Safe
Stimulates plant immunity and growth safely.
Low Molecular Weight
≤1500 Da ensures high absorption.
Applications
Foliar Spray
2–4 g / 3000 sq.ft
Soil Fertilization
5–10 g / 3000 sq.ft
Seed Treatment
1 g/L solution
Fertilizer Additive
0.1–0.5%
Specifications
| Items | Specifications |
| Appearance | Yellow powder |
| Average Molecular Weight | 3000 Da max |
| D.A.C | 85% MIN |
| Content | 90% min |
| Ash % | 1.0 max |
| Moisture % | 10.0 max |
| Insoluble % | 0.5 max |
| Particle size | 100 mesh |
| PH | 5-7 |
| Coli form bacteria | Negative |
| Salmonella sp. | Negative |
| Yeast (cfu/g) | 100 max |
| Total plate count (cfu/g) | 1000 max |
Packaging, Storage & Transportation
- Standard Export Packaging: 25KG fiber drums/25KG cartons
- Store in a cool and dry place. Keep tightly closed
- Shelf Life: 24 months