This product is not considered a low molecular weight option. The material is a fairly crude, practical grade. Historical data indicates an estimated molecular weight range of 190 - 375 kDa.
Alle Fotos(5)
Wichtige Dokumente
C3646
Chitosan
from shrimp shells, ≥75% (deacetylated)
Synonym(e):
Deacetyliertes Chitin, Poly(D-glucosamin)
Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
Alle Fotos(5)
About This Item
Preise und Verfügbarkeit sind derzeit nicht verfügbar.
Empfohlene Produkte
Biologische Quelle
shrimp shells
Qualitätsniveau
Assay
≥75% (deacetylated)
Form
powder or flakes
Farbe
white to beige
mp (Schmelzpunkt)
102.5 °C ((216.5 °F ))
Löslichkeit
acetic acid: water: 10 mg/mL, slightly hazy to hazy (with extensive sonication)
H2O: insoluble
organic solvents: insoluble
Schüttdichte
0.15‑0.3 g/cm3
Lagertemp.
room temp
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
InChIKey
FLASNYPZGWUPSU-SICDJOISSA-N
Suchen Sie nach ähnlichen Produkten? Aufrufen Leitfaden zum Produktvergleich
Anwendung
Gelbildend mit multivalenten Anionen. Ergibt eine klare Lösung, die zu einem starken, klaren Film trocknet.
Shrimp shell derived chitosan, deacetylated chitin (poly β-1,4-D-glucosamine), may be used as a biocompatible, antibacterial and environmentally friendly polyelectrolyte biomaterial with a variety of applications including uses in 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. It may be derivatized to further expand its uses.[1][2]
Leistungsmerkmale und Vorteile
Biokompatibles, antibakterielles und umweltfreundliches Polyelektrolyt für eine Vielzahl von Anwendungen, einschließlich Wasseraufbereitung, Chromatographie, Additive für Kosmetikprodukte, Textilbehandlung für antimikrobielle Aktivität, neuartige Fasern für Textilien, Fotopapier, biologisch abbaubare Filme, biomedizinische Produkte und Mikrokapselimplantate für die kontrollierte Freisetzung von Arzneimitteln.
Qualität
May contain foreign matter.
Angaben zur Herstellung
Prepared by the alkaline deacetylation of chitin obtained from the shells of shrimp (Pandalus borealis). Chitin is manufactured industrially by crushing shrimp shells, then washing the solids with acids to remove inorganic and proteinaceous material. The purified chitin is deacetylated to chitosan by treatment with a strong base such as sodium hydroxide. The resulting chitosan may be further purified by preparation of solutions in acid followed by neutralization and precipitation.
Hinweis zur Analyse
Sonstige Hinweise
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Lagerklassenschlüssel
11 - Combustible Solids
WGK
nwg
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
Hier finden Sie alle aktuellen Versionen:
Analysenzertifikate (COA)
Lot/Batch Number
Die passende Version wird nicht angezeigt?
Wenn Sie eine bestimmte Version benötigen, können Sie anhand der Lot- oder Chargennummer nach einem spezifischen Zertifikat suchen.
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Sirong Tan et al.
Journal of agricultural and food chemistry, 62(8), 1866-1874 (2014-02-01)
Chitosan (CTS) and capsaicin (CAP) are two kinds of effective ingredients for antiobesity, which are extracted from crab shells and Capsicum annuum. However, the strong taste of CAP makes it difficult to consume, and the antiobesity ability of CTS is
Frederik T Larsen et al.
Vaccines, 8(2) (2020-05-21)
Infectious bronchitis virus (IBV) is a highly contagious avian coronavirus. IBV causes substantial worldwide economic losses in the poultry industry. Vaccination with live-attenuated viral vaccines, therefore, are of critical importance. Live-attenuated viral vaccines, however, exhibit the potential for reversion to
Wen-Chu Hsiao et al.
Journal of the Formosan Medical Association = Taiwan yi zhi, 118(1 Pt 1), 152-161 (2018-03-04)
Cell behaviors in three-dimensional spheroids are known to be different from those in monolayer cultures; however, very few studies have compared the characteristics of cell spheroids formed through different biomaterial-induced processes. This study investigated the mechanism of melanocyte spheroid formation
Determination of the degree of acetylation of chitin and chitosan.
Davies, D. H., and Hayes, E. R.
Methods in Enzymology, 161-pt. B, 442-446 (1988)
Koen van der Maaden et al.
Langmuir : the ACS journal of surfaces and colloids, 30(7), 1812-1819 (2014-01-30)
The aim of this work was to generate a tunable surface isoelectric point (sIEP), where the surface is modified with two molecules: a weak base (pyridine), carrying a pH dependent positive charge, and a derivative of a strong acid (sulfate)
Artikel
Carcinogenic compounds in elastomers: 1,3-butadiene and isoprene used in elastomer manufacturing, classified as carcinogenic by IARC.
-
C3646 chitosan is lower molecular weight? What is the molecular weight range?
1 Antwort-
Hilfreich?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 Antwort-
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/449/386/product-dating-information-mk.pdfHilfreich?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 Antwort-
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
Hilfreich?
-
-
What is the Department of Transportation shipping information for this product?
1 Antwort-
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.
Hilfreich?
-
-
What is the molecular weight of Product C3646, Chitosan from shrimp shells?
1 Antwort-
Sigma-Aldrich has not determined an average molecular weight or a molecular weight range for this product.
Hilfreich?
-
-
Is Product C3646, Chitosan from shrimp shells, USP grade?
1 Antwort-
No, this product is not considered USP grade.
Hilfreich?
-
-
What is the pKa of Product C3646, Chitosan from shrimp shells?
1 Antwort-
The amino group in chitosan has a pKa value of ~6.5.
Hilfreich?
-
Aktive Filter
Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..
Setzen Sie sich mit dem technischen Dienst in Verbindung.
