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
| biological source | plant |
| color | white to off-white |
| form | powder |
| InChI | 1S/C24H38O25S2/c25-1-5-14 |
| InChI key | ZNOZWUKQPJXOIG-XSBHQQIPSA |
| 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 |