A specific protocol for creating a PDB file for this product is not available. The SMILES string is included in the product properties. This material is 75-85% deacetylated, which can be helpful for determining the chitosan structure. A literature search is recommended for additional information.
448877
Chitosan
medium molecular weight
Chitosan
Synonym(s):
Deacetylated chitin, Poly(D-glucosamine)
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Product Name
Chitosan, medium molecular weight
SMILES string
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
InChI key
FLASNYPZGWUPSU-SICDJOISSA-N
form
powder
viscosity
200-800 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)
solubility
dilute aqueous acid: soluble
Quality Level
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Related Categories
1 of 4
This Item | 448869 | 937657 | 1105508 |
|---|---|---|---|
| solubility dilute aqueous acid: soluble | solubility dilute aqueous acid: soluble | solubility - | solubility - |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level - |
| form powder | form powder | form powder or chunks (or Fibers) | form - |
| viscosity 200-800 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.) | viscosity 20-300 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.) | viscosity - | viscosity - |
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.
Biocompatible, antibacterial and environmentally friendly polyelectrolyte.
Physical form
75-85% deacetylated
Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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
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
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
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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Polymers, natural or synthetic, are vital in medical advancements, contributing to device and pharmaceutical development in therapy.
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I have bought this item, How to make this item in pdb file for doing molecular docking?
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How can I determine the shelf life / expiration / retest date of this product?
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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What is the particle size of this product (448877 chitosan)?
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The particle size of this product is not determined.
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Is the chitosan produced starting from shrimp shells that are sourced as waste from the food industry, or are these shrimps specifically farmed for chitosan production?
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The shrimp sourced to produce this item are harvested in Iceland specifically for use in chitosan production.
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What is the purity of chitosan?
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The minimum purity of this product is 75%. Purity is determined on a lot-specific basis.
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Could you please provide us the chemical formula of this chitosan compound?
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Chitasan is a biopolymer with a base molecular formula of C12H24N2O9. This particular product is a medium molecular weight option with a range of 190,000-310,000 Da.
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Do you perform a chemical or enzymatic deacetylation on Chitin to obtain Chitosan? Which chemical or enzyme do you employ?
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Unfortunately, the deacetylation method is considered proprietary.
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Which Chitosan has the highest quality, for research or for cosmetic purposes?
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Unfortunately, none of the Chitosan products currently offered are suitable for cosmetic purposes.
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What is the polydispersity of medium molecular weight chitosan, product 448877?
1 answer-
Unfortunately, the polydispersity is not determined for for this item.
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