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κ-Carrageenan

SIGMA/22048 - sulfated plant polysaccharide

Synonym: Vegetable gelatin

CAS Number: 11114-20-8
EC Number: 234-350-2
MDL Number: MFCD00151514
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-22048-25G-F 25 g
$53.50
1/EA
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45-22048-100G-F 100 g
$151.00
1/EA
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biological source plant
color white to off-white
form powder
InChI 1S/C24H38O25S2/c25-1-5-14(48-50(33,34)35)9(27)10(28)22(42-5)45-16-8-4-40-19(16)12(30)23(44-8)47-20-13(31)24(43-6(2-26)17(20)49-51(36,37)38)46-15-7-3-39-18(15)11(29)21(32)41-7/h5-32H,1-4H2,(H,33,34,35)(H,36,37,38)/p-2/t5-,6-,7-,8-,9-,10-,11-,12-,13-,14+,15+,16+,17+,18-,19-,20-,21+,22+,23-,24+/m1/s1
InChI key ZNOZWUKQPJXOIG-XSBHQQIPSA-L
Quality Level 100 
solubility H2O: soluble 5 mg/mL (hot)
viscosity 5-25 mPa.s, 0.3 % in H2O(25 °C)
Application: Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. As ι-, κ-, and λ-carrageenans have varying degress of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities.
Application: May be used in immobilization of microbial cells based on the growth of cell in gel
General description: Carrageenans are mucopolysaccharides from the cell walls of the red algae. They are anionic linear polymers composed of 1,3α-1,4β-galactans having one (κ-), two (ι-) or three (λ-) sulfates per disaccharide unit. In ionic solutions, κ- and ι-carrageenans self-associate into helical structures that form rigid or flexible gels, respectively. λ-carrageenans do not form helices and are non-gelling. Carrageenans are used commercially as thickeners and stabilizing agents.
General description: insoluble in hot concentrated salt solutions
Other Notes: To gain a comprehensive understanding of our extensive range of Polysaccharides  for your research, we encourage you to visit our Carbohydrates  Category page.
RIDADR NONH for all modes of transport
WGK Germany WGK 2
Flash Point(F) Not applicable
Flash Point(C) Not applicable
UNSPSC 12352201

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