Molekula
Chitosan
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Chitosan is a natural polysaccharide derived from chitin, used in biomedical applications, drug delivery, water treatment, and agriculture due to its biocompatibility and antimicrobial properties. It has a CAS number of 9012-76-4, molecular formula (C6H11NO4)n, and is a polymer with no defined molecular weight. It is stable at ambient storage conditions and carries no signal word.
Molekula supplies Chitosan in 100 g packs, from £107.64 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £89.70 per pack ex VAT · £107.64 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off-White or to light yellow / beige powder |
| Water | ≤ 10.0% |
| Ash | ≤ 1.5% |
| Heavy metals | ≤ 10ppm |
| Viscosity | 50mpa.s - 800mpa.s |
| Identification | Conforms to reference |
| Total plate count | ≤1000cfu/g |
| Salmonella | Negative |
| pH | 7.0 - 8.5 |
| Bulk density | ≥ 0.3g/ml |
| DAC degree | ≥ 90.0% |
| Staphylococcus aureus | Negative |
| Mesh size | ≤ 200µm |
| Acid insoluble | ≤ 1.0% |
| Average molecular weight | 700kDa |
| Arsenic (As) | ≤ 0.5ppm |
| E. Coli | Negative |
| Mould & Yeast | ≤100cfu/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 42000446 |
| CAS Number | 9012-76-4 |
| Molecular Formula | (C6H11NO4)n |
| Molecular Weight | Polymer |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 39139050 |
| Tariff Code | 3913900099 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is chitosan used for?
Chitosan is used in biomedical applications, water treatment, and as a food additive due to its biocompatibility and film-forming properties.
What is the chemical formula and molecular weight of chitosan?
The formula is (C6H11NO4)n, and it is a polymer with no defined molecular weight.
How should chitosan be stored?
Chitosan should be stored at ambient temperature, protected from moisture and light.
What grade of chitosan is available?
Molekula's chitosan is supplied to a specification that includes a degree of deacetylation of at least 90.0%, heavy metals of no more than 10 ppm, and defined microbial limits.
Can Molekula supply chitosan in bulk?
Yes, Molekula can supply chitosan in bulk quantities; please contact sales for pricing and availability.
What documentation comes with a chitosan order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation is available upon request.
Where can I buy Chitosan?
Directly from Molekula, which lists Chitosan in 100 g packs from £107.64 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.