κ-carrageenan

Typical Properties
CAS	11114-20-8
Catalog	ACM11114208-1
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
Storage	Room Temp
Biological Source	Algae
Color	White to almost white to yellow to brownish
Composition	C24H36O25S2-2
EC Number	234-350-2
Gel Strength	450-1800 g/cm2
Grade	Reagent Grade
Impurities	Ash ≤ 30 %
Loss	≤ 12 %
MDL Number	MFCD00151514
pH	8.0-11.0
Quality Level	100
Shipping	Ambient
Viscosity	5-25 mPa.s, 0.3 % in H2O(25 °C)

Overview

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.

Features

·High stability
·Hydrophilic, high colloidal dispersion
·Good biocompatibility
·Broad-spectrum antiviral activity

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