Buy polymers · Water-soluble & biomedical
Buy Chitosan.
Find catalog suppliers and compare buying options for Chitosan. Use the material details below to match the right grade, molecular-weight range, and pack size.
Buying overview
Know what you are comparing.
A natural cationic polysaccharide where degree of deacetylation, viscosity, and salt form shape purchasing decisions.
Common short name: Chitosan
Use the name and aliases to widen your supplier search.
These fields can change whether two listings are actually comparable.
Supplier listings
Compare Chitosan prices.
The table brings different pack sizes and catalog contexts together. Price per gram is a useful first pass, but it is not a substitute for matching grade and molecular-weight range.
| Supplier / catalog | Specification | Pack | Listed price | Normalized price | Availability |
|---|---|---|---|---|---|
SA Sigma-Aldrich419419 |
High molecular weight · 310,000–375,000 DaBiopolymer · powder | 250 g | USD $386.00 | $1.54 / g | Check listing for stockChecked 2026-09-03 |
SA Sigma-Aldrich448869 |
Low molecular weightBiopolymer · powder | 50 g | USD $93.50 | $1.87 / g | Check listing for stockChecked 2026-09-03 |
SA Sigma-Aldrich419419 |
High molecular weight · 310,000–375,000 DaBiopolymer · powder | 50 g | USD $114.00 | $2.28 / g | Check listing for stockChecked 2026-09-03 |
Supplier catalogs
Open the catalogs behind the comparison.
These links lead to current supplier search pages so you can review additional grades, pack sizes, and availability beyond the checked rows above.
SciPoly catalog checked 2026-09-04: no matching public product page was returned for this material in the current check.
The marketplace is built from material records and checked supplier listings. Browse all polymers or read how comparisons are prepared.