CAS 11114-20-8 κ-carrageenan - Materials / Alfa Chemistry

NAVIGATION

κ-carrageenan

PRICE INQUIRY

Catalog Number

ACM11114208-1

CAS Number

11114-20-8

Product Name

κ-carrageenan

Structure

Category

Polysaccharide; Polymers

Description

Carrageenan is a hydrophilic colloid that is extracted from red algae seaweeds such as unicornia, celery, and carrageen. Their chemical structures are calcium, potassium, sodium and ammonium salts of polysaccharide sulfates composed of galactose and anhydrogalactose. Carrageenan can be divided into 7 types, including K-type (Kappa), I-type (Iota), and L-type (Lambda), according to the different positions where the half-ester sulfate group is attached to galactose. The gel properties of carrageenan are mainly related to its chemical composition, structure and molecular size. Based on the properties of carrageenan, they are widely used in the food industry, medicine and other fields.

IUPAC Name

[(2R,3S,4R,5R,6S)-6-[[(1R,3S,4R,5R,8S)-3,4-dihydroxy-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy]-4-[[(1R,3R,4R,5R,8S)-8-[(2S,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-sulfonatooxyoxan-2-yl]oxy-4-hydroxy-2,6-dioxabicyclo[3.2.1]octan-3-yl]oxy]-5-hydroxy-2-(hydroxymethyl)oxan-3-yl] sulfate

Molecular Weight

788.66 g/mol

Molecular Formula

C24H36O25S2–

Canonical SMILES

C1C2C(C(O1)C(C(O2)O)O)OC3C(C(C(C(O3)CO)OS(=O)(=O)[O-])OC4C(C5C(C(O4)CO5)OC6C(C(C(C(O6)CO)OS(=O)(=O)[O-])O)O)O)O

InChI

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

Solubility

H2O: 5 mg/mL hot, soluble

Appearance

White powder

Application

·Adhesives, thickeners, emulsifiers and stabilizers in the food industry
·Culture medium, medicament, anticoagulant, hypolipidemic agent and laxative in the field of medicine
·Used as an antistatic agent for photosensitive emulsions and photosensitive emulsion layers
·Embedding material for immobilized enzyme carrier and bacteria
·For leather industry, ceramic industry, textile industry and paper industry

Storage

Room Temp

Color

White to almost white to yellow to brownish

Complexity

1380

Composition

C24H36O25S2-2

Covalently-Bonded Unit Count

EC Number

234-350-2

Exact Mass