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Merck
모든 사진(1)

주요 문서

48165

Sigma-Aldrich

Chitosan from crab shells

highly viscous

동의어(들):

2-Amino-2-deoxy-(1→4)-β-D-glucopyranan, Poly-(1,4-β-D-glucopyranosamine)

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About This Item

CAS Number:
MDL number:
UNSPSC 코드:
12352201
NACRES:
NA.25
48165 제품과 관련한 질문은 현지 머크 영업소 또는 판매 사원에게 문의해 주십시오. 고객지원팀으로 연락바랍니다.

생물학적 소스

(crab)

양식

powder

불순물

≤1% insoluble matter

무기 잔류물

≤2% (as SO4)

손실

≤12% loss on drying

색상

yellow

점도

>400 mPa.s, 1 % in acetic acid(20 °C)

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

유사한 제품을 찾으십니까? 방문 제품 비교 안내

일반 설명

Chitosan is a linear amino polysaccharide composed of approximately 20% β1,4-linked N-acetyl-D-glucosamine (GlcNAc) and approximately 80% β1,4-linked D-glucosamine (GlcN) that is prepared by the partial deacetylation of chitin in hot alkali.

애플리케이션

Chitosan is a biocompatible, antibacterial, and biodegradable polyelectrolyte with a variety of industrial and biomedical applications. Its chemical properties and low toxicity make it particularly suitable as a component of drug and gene delivery systems, and for the development of biodegradable films and scaffolds for tissue engineering.

기타 정보

To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


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시험 성적서(COA)

Lot/Batch Number

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문서 라이브러리 방문

Kyriaki G Zinoviadou et al.
Food & function, 3(3), 312-319 (2012-02-03)
Oil-in-water emulsions (10% w/w n-tetradecane) were prepared at pH = 5.7 by using, as surface active agents, electrostatically formed complexes of sodium stearoyl lactylate (SSL) at a concentration of 0.4% (w/w) and chitosan (CH) in a concentration range between 0
Rushita Shah et al.
Polymers, 11(12) (2019-12-19)
The application of polymeric biomaterial scaffolds utilizing crosslinking strategy has become an effective approach in these days. In the present study, the development and characterization of collagen-chitosan hydrogel film has been reported on using dual crosslinking agent's, i.e., tannic acid
Alberto Busilacchi et al.
Carbohydrate polymers, 98(1), 665-676 (2013-08-31)
The idea of using chitosan as a functional delivery aid to support simultaneously PRP, stem cells and growth factors (GF) is associated with the intention to use morphogenic biomaterials to modulate the natural healing sequence in bone and other tissues.
Liming Hu et al.
Nanoscale, 5(8), 3103-3111 (2013-03-22)
Within the past few years, chitosan-based drug delivery vehicles have become some of the most attractive to be studied. In contrast to all other polysaccharides, chitosan has demonstrated its unique characteristics for drug delivery platforms, including its active primary amino
Electrochemical biosensor applications of polysaccharides chitin and chitosan.
Wipa Suginta et al.
Chemical reviews, 113(7), 5458-5479 (2013-04-06)

질문

1–3 / 3 질문  
  1. What is the degree of deacetylation of this reagent?

    1 답변
    1. The degree of acetylation should be above 75% for each lot, but the exact value will vary. For information on the degree of acetylation for a particular lot, contact the local technical service team.

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  2. What is the molecular weight of this chitosan (ref 48165)?

    1 답변
    1. The molecular weight for this product is not analyzed on a lot to lot basis. However, the expected range is 500,000 to 700,000 g/mol.

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  3. Greetings I wish to know if this chitosan is soluble or insoluble in water. I also realized that there is water-soluble chitosan. Please kindly clarify the difference. I need them to do laboratory experiments.

    1 답변
    1. This product has not been tested for it's solubility in water. However, one gram chitosan can be dissolved in a mixture of 100mL 10% acetic acid and 50mL methanol, and then precipitated from a precipitant consisted of 10mL ethanol and 90mL acetate ester. The treated chitosan should become soluble in acid-free water completely at 8.02mg/mL

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