[(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

KAPPA-CARRAGEENAN · K-CARRAGEENAN · IRISH MOSS · κ-carrageenan · kappa-carrageen · IRISH MOSS TYPE III · GELATIN, VEGETABLE TYPE III · CARRAGEENAN

https://huagongshe.com/en/chemical/178759531

[(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 structure

Identifiers & Physical Properties

CAS No.	11114-20-8
Molecular formula	C24H36O25S2-2
Average molar mass	788.7 g/mol
SMILES	O=S(=O)([O-])O[C@@H]1[C@H](O)[C@@H](O)[C@H](O[C@@H]2[C@@H]3OC[C@H]2O[C@H](O[C@@H]2[C@@H](O)[C@H](O[C@@H]4[C@@H]5OC[C@H]4O[C@H](O)[C@@H]5O)O[C@H](CO)[C@@H]2OS(=O)(=O)[O-])[C@@H]3O)O[C@@H]1CO
InChIKey	ZNOZWUKQPJXOIG-XSBHQQIPSA-L

Chemical & Physical Properties

XLogP	-8.5
Topological polar surface area	395
Hydrogen bond donors	8
Hydrogen bond acceptors	25
Rotatable bonds	10
Heavy atoms	51
Formal charge	-2
Complexity	1,380
Solubility	H2O: 5 mg/mL hot, solubleH2O: soluble 5mg/mL (hot)
Physical state	Solid
Color	White to almost white to yellow to brownish
Biological source	plant
Viscosity	10.0 to 25.0 m Pa-s(0.3 %, H2O, 25 ℃)
Merck	14,1864
Cosmetic Ingredient Review (CIR)	κ-Carrageenan (11114-20-8)
InChIKey	ZNOZWUKQPJXOIG-XSBHQQIPSA-L
EWG's Food Scores	1
FDA UNII	DV181E4639
UNSPSC Code	12352201
NACRES	NA.25
Water hazard class (WGK)	2
RTECS number	FI0704000
F	3
Customs code	13023990
Storage class	11 - Combustible Solids
Toxicity	rabbit,LDLo,intravenous,3mg/kg (3mg/kg),BLOOD: CHANGE IN CLOTTING FACTORS,Journal of Pharmacy and Pharmacology. Vol. 17, Pg. 647, 1965.

Safety & Regulations

F	3
Water hazard class (WGK)	2
RTECS number	FI0704000
Customs code	13023990
Toxicity	rabbit,LDLo,intravenous,3mg/kg (3mg/kg),BLOOD: CHANGE IN CLOTTING FACTORS,Journal of Pharmacy and Pharmacology. Vol. 17, Pg. 647, 1965.
Storage class	11 - Combustible Solids

Applications & Uses

Uses

κ-Carrageenan is a sulfated linear polysaccharide of D-galactose and 3,6-anhydro-D-galactose extracted from certain red seaweeds of the Rhodophyceae class. κ-Carrageenan is used in the food industry as thickening, gelling and protein-suspending agents, and by the pharmaceutical industry in pills and tablets.

Uses

The carrageenans are sulphate gums found in members of the Rhodophyceae. They consist of mixtures of polysaccharides which are mainly composed of D-galactose units linked 1~3 and 1~4. A high proportion ofthe units are substituted with sulphate half-ester groups. The carrageenans are useful stabilisers in foods.