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Merck
CN

448877

Sigma-Aldrich

壳聚糖

medium molecular weight

别名:

聚(D-氨基葡萄糖), 脱乙酰几丁质

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About This Item

CAS号:
MDL编号:
UNSPSC代码:
12352201
NACRES:
NA.23

质量水平

形式

powder

粘度

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

溶解性

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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应用

与多价阴离子形成凝胶。 产生透明溶液,干燥后形成坚固、透明的薄膜。
壳聚糖可用作絮凝剂、蛋白质沉淀剂、包封剂和水增稠剂。

特点和优势

生物相容、抗菌和环保的聚电解质,其具有多种应用,包括水处理、色谱法、化妆品添加剂、抗微生物活性的纺织品处理、纺织品的新型纤维、照相纸、可生物降解的薄膜、生物医学装置、以及用于药物递送中控制释放的微胶囊植入物。

外形

75-85% 脱乙酰化

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ (Lot或Batch)字后找到。

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the molecular weight range for Product 448877, Chitosan?

    The molecular weight is 190,000-310,000 based on viscosity

  4. What is the solubility of Product 448877, Chitosan? 

    Chitosan is insoluble in water or organic solvents.  Hazy solutions can be prepared in 1 M acetic acid (10 mg/ml), but extensive sonication may be required to fully suspend and dissolve the material.  It is also soluble in dilute acidic aqueous solvents.

  5. What are the molecular weights of the chitosan products you offer, Products 448869, 448877, and 419419?

    We offer three different sizes of chitosan.  Our low molecular weight chitosan (Product 448869) is 50,000-190,000 Da.  Our medium molecular weight chitosan (Product 448877) is 190,000-310,000 Da.  Our high molecular weight chitosan (Product 419419) is ~310,000 TO >375,000 Da.

  6. What are some uses for chitosan?

    Chitosan is a 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. Please note that Product No. 419419 is for research purposes only, not for cosmetic or drug use.

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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
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
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
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
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

商品

Carcinogenic compounds in elastomers: 1,3-butadiene and isoprene used in elastomer manufacturing, classified as carcinogenic by IARC.

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

Polymers, natural or synthetic, are vital in medical advancements, contributing to device and pharmaceutical development in therapy.

Chitosan is a naturally occurring polysaccharide ideally suited for use in medical supplies, devices, therapeutics, and diagnostics. The unique natural characteristics of chitosan include its cationic, biocompatible, biodegradable, non-toxic, non-immunogenic, and antimicrobial properties.

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