22049

λ-Carrageenan

plant mucopolysaccharide

• Numero CAS: 9064-57-7
• NACRES: NA.25
• UNSPSC Code: 12352201
• EC Number: 232-953-5
• MDL number: MFCD00151513

Proprietà

• biological source: plant
• form: solid
• color: light yellow
• storage temp.: room temp
• InChI: 1S/C24H42O39S6/c25-1-5-9(27)11(29)18(61-67(42,43)44)22(54-5)57-15-8(4-52-65(36,37)38)56-23(19(13(15)31)62-68(45,46)47)59-16-10(28)6(2-26)55-24(20(16)63-69(48,49)50)58-14-7(3-51-64(33,34)35)53-21(32)17(12(14)30)60-66(39,40)41/h5-32H,1-4H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44)(H,45,46,47)(H,48,49,50)/p-6/t5-,6-,7-,8-,9+,10+,11+,12+,13+,14+,15+,16+,17-,18-,19-,20-,21+,22+,23-,24+/m1/s1
• InChI key: CFLYIPGVTFOQCI-SQESNNFJSA-H

Descrizione

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.

non-gelling at 1% in 0.2 M KCl-solution

Application

Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. Non-gelling λ-carrageenan is used to induce inflammation and inflammatory pain in the rodent hindpaw or air pouch models. More recently carrageenan has been injected directly into the joints of rodents to model arthritic pain and inflammation.

Analysis Note

solubility:
10 mg/mL in H₂O : clear to very hazy, colorless to faint yellow

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.

Informazioni sulla sicurezza

• Classe di stoccaggio: 11 - Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)