Merck
CN

419419

Sigma-Aldrich

壳聚糖

high molecular weight

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别名:
聚(D-氨基葡萄糖), 脱乙酰几丁质
CAS号:
MDL编号:
NACRES:
NA.23

质量水平

形式

(Coarse ground flakes and powder)

分子量

310000-375000 Da

粘度

800-2000 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

溶解性

H2O: insoluble
organic solvents: insoluble

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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此商品
C3646417963448869
Chitosan high molecular weight

Sigma-Aldrich

419419

壳聚糖

Chitosan from shrimp shells, ≥75% (deacetylated)

Sigma-Aldrich

C3646

壳聚糖

Chitosan from shrimp shells, practical grade

Sigma-Aldrich

417963

壳聚糖

Chitosan low molecular weight

Sigma-Aldrich

448869

壳聚糖

solubility

H2O: insoluble, organic solvents: insoluble

solubility

acetic acid: water: 10 mg/mL, slightly hazy to hazy (with extensive sonication), H2O: insoluble, organic solvents: insoluble

solubility

1 M acetic acid: 10 mg/mL

solubility

dilute aqueous acid: soluble

mol wt

310000-375000 Da

mol wt

-

mol wt

190000-375000 Da

mol wt

50,000-190,000 Da (based on viscosity)

viscosity

800-2000 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

viscosity

-

viscosity

>200 cP, 1 wt. % in 1% acetic acid(20 °C, Brookfield)(lit.)

viscosity

20-300 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)

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。

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% 脱乙酰化

储存分类代码

11 - Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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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 of Chitosan, Product 419419?

    Although we do not measure molecular weight on a batch to batch basis, we would expect it to be approximately 310,000 to >375,000 based on the viscosity range of 800-2000 mPaS.

  4. What is the particle size of Product 419419, Chitosan?

    The particle size has not been determined.  It is described as being course ground flakes or powder.

  5. What is the solubility of Product 419419, Chitosan?

    Chitosan is insoluble in water or organic solvents.  Hazy suspensions can be prepared in 1M acetic acid at a concentration of 10 mg/mL, but extensive sonication may be required to fully suspend the material.

  6. What is the source of Product 419419, Chitosan?

    Chitosan is a natural biopolymer commerically derived from chitin from crustacean shells.  

  7. What is the pH of Product 419419, Chitosan?

    Our supplier estimates that the pH falls within the range of 6.5-8.0.

  8. 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.

  9. 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.

  10. 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. 

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

    Ask a Scientist here.

D F Silva et al.
Enzyme research, 2017, 4362704-4362704 (2017-05-04)
The immobilization of cellulases could be an economical alternative for cost reduction of enzyme application. The derivatives obtained in the immobilization derivatives were evaluated in recycles of paper filter hydrolysis. The immobilization process showed that the enzyme recycles were influenced
Thomas M Higgins et al.
Nanomaterials (Basel, Switzerland), 1(1), 3-19 (2011-04-06)
The mechanical and electrical characteristics of films, buckypapers and fiber materials from combinations of clay, carbon nanotubes (CNTs) and chitosan are described. The rheological time-dependent characteristics of clay are maintained in clay-carbon nanotube-chitosan composite dispersions. It is demonstrated that the
Jianjun Miao et al.
Langmuir : the ACS journal of surfaces and colloids, 28(9), 4396-4403 (2012-02-09)
Extracorporeal filter cartridges, filled with an activated carbon bead (ACB) adsorbent, have been used for removal of overdosed cancer drugs from the blood. Coatings on adsorbent matrices, poly(methyl methacrylate) (PMMA)/activated carbon bead and PMMA/chitosan/heparin/ACB composites, were tested to improve their
A D Anastasiou et al.
Acta biomaterialia, 71, 86-95 (2018-02-21)
A radical new methodology for the exogenous mineralization of hard tissues is demonstrated in the context of laser-biomaterials interaction. The proposed approach is based on the use of femtosecond pulsed lasers (fs) and Fe3+-doped calcium phosphate minerals (specifically in this
Antonia G Moutzouri et al.
BioMed research international, 2014, 740726-740726 (2014-07-06)
Cell adhesion on substrates is accompanied by significant changes in shape and cytoskeleton organization, which affect subsequent cellular and tissue responses, determining the long-term success of an implant. Alterations in osteoblast stiffness upon adhesion on orthopaedic implants with different surface

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