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448877

Sigma-Aldrich

Chitosan

medium molecular weight

Synonym(s):

Deacetylated chitin, Poly(D-glucosamine)

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About This Item

CAS Number:
9012-76-4
MDL number:
MFCD00161512
UNSPSC Code:
12352201
NACRES:
NA.23

Quality Level

200

form

powder

viscosity

200-800 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

solubility

dilute aqueous acid: soluble

InChI

1S/C56H103N9O39/c1-87-56(86)65-28-38(84)46(19(10-74)96-55(28)104-45-18(9-73)95-49(27(64)37(45)83)97-39-12(3-67)88-47(85)20(57)31(39)77)103-54-26(63)36(82)44(17(8-72)94-54)102-53-25(62)35(81)43(16(7-71)93-53)101-52-24(61)34(80)42(15(6-70)92-52)100-51-23(60)33(79)41(14(5-69)91-51)99-50-22(59)32(78)40(13(4-68)90-50)98-48-21(58)30(76)29(75)11(2-66)89-48/h11-55,66-85H,2-10,57-64H2,1H3,(H,65,86)/t11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26-,27-,28-,29-,30-,31-,32-,33-,34-,35-,36-,37-,38-,39-,40-,41-,42-,43-,44-,45-,46-,47-,48+,49+,50+,51+,52+,53+,54+,55+/m1/s1

InChI key

FLASNYPZGWUPSU-SICDJOISSA-N

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Application

Chitosan may be used as a flocculant, in protein precipitation, encapsulating agent and aqueous thickener.
Forms gels with multivalent anions. Gives clear solutions that dry to strong, clear films.

Features and Benefits

Biocompatible, antibacterial and environmentally friendly polyelectrolyte with a variety of applications including water treatment, chromatography, additives for cosmetics, textile treatment for antimicrobial activity, novel fibers for textiles, photographic papers, biodegradable films, biomedical devices, and microcapsule implants for controlled release in drug delivery.

Physical form

75-85% deacetylated

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Viviana Vergaro et al.
International journal of biological macromolecules, 99, 187-195 (2017-02-25)
Carbohydrate polimeric microcapsules were assembled using a LbL approach onto a CaCO
Mohammad Amin Shamekhi et al.
International journal of biological macromolecules, 127, 396-405 (2019-01-10)
Enhancement of physical and mechanical properties of the scaffolds is achieved via various methods including cross-linking and incorporation of nano particles. In the present research chitosan-based scaffolds firstly were reinforced with the incorporation of the graphene oxide (GO) nanoparticles. The
Enni Hakkarainen et al.
Pharmaceutics, 11(10) (2019-09-29)
We investigated nozzleless ultrasound-enhanced electrospinning (USES) as means to generate nanofibrous drug delivery systems (DDSs) for pharmaceutical and biomedical applications. Traditional electrospinning (TES) equipped with a conventional spinneret was used as a reference method. High-molecular polyethylene oxide (PEO) and chitosan
Arnout Mieremet et al.
PloS one, 12(3), e0174478-e0174478 (2017-03-24)
Full thickness human skin models (FTMs) contain an epidermal and a dermal equivalent. The latter is composed of a collagen dermal matrix which harbours fibroblasts. Current epidermal barrier properties of FTMs do not fully resemble that of native human skin
Paulo V O Toledo et al.
International journal of biological macromolecules, 123, 1180-1188 (2018-11-24)
Xanthan gum (XG) was applied for the creation of hydrophilic, hydrophobic and layered cryogels. Firstly, the correlation among synthesis parameters, such as solvent composition and polymer concentration (Cp) in the precursor gel and mold diameter (Φ), with physicochemical properties and
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