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Documentos Principais

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448877

Sigma-Aldrich

Quitosana

medium molecular weight

Sinônimo(s):

Poli(D-glicosamina), Quitina desacetilada

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About This Item

Número CAS:
9012-76-4
Número MDL:
MFCD00161512
Código UNSPSC:
12352201
NACRES:
NA.23

Nível de qualidade

200

Formulário

powder

viscosidade

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

solubilidade

dilute aqueous acid: soluble

cadeia de caracteres SMILES

N([C@H]1[C@@H](O[C@@H]([C@H]([C@@H]1O)O[C@@H]4O[C@@H]([C@H]([C@@H]([C@H]4N)O)O[C@@H]5O[C@@H]([C@H]([C@@H]([C@H]5N)O)O[C@@H]6O[C@@H]([C@H]([C@@H]([C@H]6N)O)O[C@@H]7O[C@@H]([C@H]([C@@H]([C@H]7N)O)O[C@@H]8O[C@@H]([C@H]([C@@H]([C@H]8N)O)O[C@@H]9O[C@@H]([C@H](

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

chave InChI

FLASNYPZGWUPSU-SICDJOISSA-N

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Aplicação

A quitosana pode ser usada como floculante, na precipitação de proteínas, como agente encapsulante e espessante aquoso.
Forma géis com ânions multivalentes. Produz soluções transparentes que secam na forma de filmes fortes e transparentes.

Características e benefícios

Polieletrólito biocompatível, antibacteriano e ecológico com diversas aplicações, incluindo tratamento de água, cromatografia, aditivos para cosméticos, tratamento têxtil para atividade antimicrobiana, fibras novas para tecidos, papéis fotográficos, filmes biodegradáveis,dispositivos biomédicos e implantes de microcápsulas de liberação controlada para administração de fármacos.
Polieletrólito biocompatível, antibacteriano e ecológico.

forma física

75% a 85% desacetilada

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number
0000149455
BCCG6391
BCCG2332
BCCG4737
0000122569

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Visite a Biblioteca de Documentos

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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