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448877

Sigma-Aldrich

Chitosan

medium molecular weight

Synonyma:

Deacetylated chitin, Poly(D-glucosamine)

Přihlásitk zobrazení cen stanovených pro organizaci a smluvních cen
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About This Item

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

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

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Osvědčení o analýze (COA)

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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
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
Wei-Hsuan Lo et al.
Molecules (Basel, Switzerland), 25(21) (2020-11-07)
(1) Background: Few antifungal drugs are currently available, and drug-resistant strains have rapidly emerged. Thus, the aim of this study is to evaluate the effectiveness of the antifungal activity from a combinational treatment of chitosan with a clinical antifungal drug
Lana Glerieide Silva Garcia et al.
Carbohydrate polymers, 195, 662-669 (2018-05-29)
Difficulties in the treatment of Candida spp. invasive infections are usually related to the formation of biofilms. The aim of this study was to determine the effects of molecular weight (MW) of chitosan (using high (HMW), medium (MMW) and low
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Chitosan-based Biomaterials

Chitin, a natural polysaccharide, is the second most abundant natural biopolymer in the world, after cellulose.

Preparation of Chitosan Microparticles by Spray Drying

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Chitosan in Pharmaceutical Applications

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