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Record Information
StatusExpected but not Quantified
Creation Date2013-05-17 01:21:54 UTC
Update Date2019-11-29 19:03:13 UTC
Secondary Accession Numbers
  • HMDB60453
Metabolite Identification
Common NameChondroitin 6-sulfate
DescriptionChondroitin 6-sulfate, also known as chondroitin sulfate C, is a derivative of chondroitin which has a sulfate moiety esterified to carbon 6 of the N-acetylgalactosamine (GalNAc) sugar. Chondroitin sulfate (CS) is a linear heteropolysaccharide consisting of repeating disaccharide units of glucuronic acid and galactosamine, which is commonly sulfated at C-4 and/or C-6 of galactosamine. Chondroitin sulfate is a glycosaminoglycan (GAG) covalently linked to proteins forming proteoglycans (PGs). GAGs are all anionic linear heteropolysaccharide chains of repeating disaccharide units. According to the monosaccharide types and the glycosidic bonds between them, GAGs are divided into (1) hyaluronan, (2) CS and dermatan sulfate (DS), (3) heparan sulfate and heparin, and (4) keratan sulfate. CS was isolated from cartilage in 1884, but the nature of its monosaccharides and structure was first described in 1925. On the basis of the structure of chondroitin sulfate, at least five enzyme activities could be predicted, including three transferases (EC, the initiating GalNAc transferase; EC, polymerizing GalNAc; and EC, GlcA transferase) and two sulfotransferases (EC, GalNAc 4-sulfotransferase and EC, GalNAc 6-sulfotransferase). Additional enzymes exist for the epimerization of GlcA, sulfation of the uronic acids, and other patterns of sulfation found in unusual species of chondroitin. Chondroitin sulfate assembly can occur on virtually all proteoglycans, depending on the cell in which the core protein is expressed. Chondroitin sulfates from different sources vary in the location of sulfate groups. Separation of the products reveals that many types of chondroitin sulfate exist in nature but many chains are hybrid structures containing more than one type of disaccharide. Animal cells also degrade chondroitin sulfate in lysosomes using a series of exoglycolytic activities (PMID: 8993162 ). Chondroiton sulfate is a polymer that can contain up to 100 individual sugars.
Chondroitin 6'-sulfateHMDB
Chondroitin 6'-sulphateHMDB
Chondroitin 6-sulfateHMDB
Chondroitin 6-sulphateHMDB
Chondroitin 6’-sulfateHMDB
Chondroitin 6’-sulphateHMDB
Chondroitin C sulfateHMDB
Chondroitin C sulphateHMDB
Chondroitin sulfateHMDB
Chondroitin sulfate CHMDB
Chondroitin sulfate type CHMDB
Chondroitin sulfuric acid CHMDB
Chondroitin sulphateHMDB
Chondroitin sulphate CHMDB
Chondroitin sulphate type CHMDB
Chondroitin sulphuric acid CHMDB
Chondroitin-6-sulfuric acidHMDB
Chondroitin-6-sulphuric acidHMDB
Chemical Formula(C14H21NO14S)nH2O
Average Molecular WeightNot Available
Monoisotopic Molecular WeightNot Available
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry Number25322-46-7
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as acylaminosugars. These are organic compounds containing a sugar linked to a chain through N-acyl group.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentAcylaminosugars
Alternative Parents
  • Acylaminosugar
  • N-acyl-alpha-hexosamine
  • Disaccharide sulfate
  • 1-o-glucuronide
  • O-glucuronide
  • Glucuronic acid or derivatives
  • Disaccharide
  • Glycosyl compound
  • O-glycosyl compound
  • Beta-hydroxy acid
  • Sulfate-ester
  • Sulfuric acid monoester
  • Pyran
  • Sulfuric acid ester
  • Oxane
  • Alkyl sulfate
  • Hydroxy acid
  • Acetamide
  • Organic sulfuric acid or derivatives
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Carboxamide group
  • Hemiacetal
  • Organoheterocyclic compound
  • Polyol
  • Oxacycle
  • Carboxylic acid derivative
  • Carboxylic acid
  • Acetal
  • Monocarboxylic acid or derivatives
  • Alcohol
  • Carbonyl group
  • Organopnictogen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organonitrogen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External DescriptorsNot Available


Physical Properties
StateNot Available
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility26.1 g/LALOGPS
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Not Available
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4451061
KEGG Compound IDC00635
BioCyc IDChondroitin-Sulfate-C
BiGG IDNot Available
Wikipedia LinkChondroitin_sulfate
METLIN IDNot Available
PubChem Compound5289009
PDB IDNot Available
ChEBI ID18296
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Magrane M: UniProt Knowledgebase: a hub of integrated protein data. Database (Oxford). 2011 Mar 29;2011:bar009. doi: 10.1093/database/bar009. Print 2011. [PubMed:21447597 ]
  2. Winchester BG: Lysosomal metabolism of glycoconjugates. Subcell Biochem. 1996;27:191-238. doi: 10.1007/978-1-4615-5833-0_7. [PubMed:8993162 ]


General function:
Involved in sulfotransferase activity
Specific function:
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the transfer of sulfate to position 6 of the N-acetylgalactosamine (GalNAc) residue of chondroitin. Chondroitin sulfate constitutes the predominant proteoglycan present in cartilage and is distributed on the surfaces of many cells and extracellular matrices. Can also sulfate Gal residues of keratan sulfate, another glycosaminoglycan, and the Gal residues in sialyl N-acetyllactosamine (sialyl LacNAc) oligosaccharides. May play a role in the maintenance of naive T-lymphocytes in the spleen.
Gene Name:
Uniprot ID:
Molecular weight:
Phosphoadenosine phosphosulfate + Chondroitin → Adenosine 3',5'-diphosphate + Chondroitin 6-sulfatedetails
General function:
Involved in sulfotransferase activity
Specific function:
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the transfer of sulfate to position 6 of non-reducing N-acetylglucosamine (GlcNAc) residues. Preferentially acts on mannose-linked GlcNAc. Also able to catalyze the transfer of sulfate to position 6 of the N-acetylgalactosamine (GalNAc) residue of chondroitin. Also acts on core 2 mucin-type oligosaccharide and N-acetyllactosamine oligomer with a lower efficiency. Has weak or no activity toward keratan sulfate and oligosaccharides containing the Galbeta1-4GlcNAc. Catalyzes 6-O-sulfation of beta-benzyl GlcNAc but not alpha- or beta-benzyl GalNAc.
Gene Name:
Uniprot ID:
Molecular weight:
Phosphoadenosine phosphosulfate + Chondroitin → Adenosine 3',5'-diphosphate + Chondroitin 6-sulfatedetails