22176 <common-name>Hyaluronic acid</common-name> <description nil="true"/> <cas>9004-61-9</cas> <pubchem-id>3084050</pubchem-id> <chemical-formula>C28H44N2O23</chemical-formula> <weight nil="true"/> <appearance nil="true"/> <melting-point nil="true"/> <boiling-point nil="true"/> <density nil="true"/> <solubility nil="true"/> <specific-gravity nil="true"/> <flash-point nil="true"/> <vapour-pressure nil="true"/> <route-of-exposure nil="true"/> <target nil="true"/> <mechanism-of-toxicity nil="true"/> <metabolism nil="true"/> <toxicity nil="true"/> <lethaldose nil="true"/> <carcinogenicity nil="true"/> <use-source nil="true"/> <min-risk-level nil="true"/> <health-effects nil="true"/> <symptoms nil="true"/> <treatment nil="true"/> <created-at type="dateTime">2016-05-25T02:54:43Z</created-at> <updated-at type="dateTime">2026-04-14T17:32:12Z</updated-at> <interacting-proteins nil="true"/> <wikipedia nil="true"/> <uniprot-id nil="true"/> <kegg-compound-id nil="true"/> <omim-id nil="true"/> <chebi-id nil="true"/> <biocyc-id nil="true"/> <ctd-id nil="true"/> <stitch-id nil="true"/> <drugbank-id>DB08818</drugbank-id> <pdb-id nil="true"/> <actor-id nil="true"/> <organism nil="true"/> <export type="boolean">true</export> <metabolizing-proteins nil="true"/> <transporting-proteins nil="true"/> <moldb-smiles>[H]C1(O)O[C@]([H])(CO)[C@@]([H])(O)[C@]([H])(O[C@]2([H])OC([H])(C(O)=O)[C@@]([H])(O[C@]3([H])O[C@]([H])(CO)[C@@]([H])(O)C([H])(O[C@@]4([H])O[C@]([H])(C(O)=O)C([H])(O)[C@]([H])(O)[C@@]4([H])O)[C@@]3([H])N=C(C)O)[C@]([H])(O)[C@@]2([H])O)[C@@]1([H])N=C(C)O</moldb-smiles> <moldb-formula>C28H44N2O23</moldb-formula> <moldb-inchi>InChI=1S/C28H44N2O23/c1-5(33)29-9-18(11(35)7(3-31)47-25(9)46)49-28-17(41)15(39)20(22(53-28)24(44)45)51-26-10(30-6(2)34)19(12(36)8(4-32)48-26)50-27-16(40)13(37)14(38)21(52-27)23(42)43/h7-22,25-28,31-32,35-41,46H,3-4H2,1-2H3,(H,29,33)(H,30,34)(H,42,43)(H,44,45)/t7-,8-,9-,10-,11-,12-,13+,14?,15-,16-,17-,18-,19?,20+,21+,22?,25?,26+,27+,28-/m1/s1</moldb-inchi> <moldb-inchikey>KIUKXJAPPMFGSW-YXBJCWEESA-N</moldb-inchikey> <moldb-average-mass type="decimal">776.651</moldb-average-mass> <moldb-mono-mass type="decimal">776.233485685</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp nil="true"/> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id>2341173</chemspider-id> <structure-image-file-name nil="true"/> <structure-image-content-type nil="true"/> <structure-image-file-size type="integer" nil="true"/> <structure-image-updated-at type="dateTime" nil="true"/> <biodb-id nil="true"/> <synthesis-reference nil="true"/> <structure-image-caption nil="true"/> <chemdb-id>CHEM021071</chemdb-id> <dsstox-id>DTXSID7046750</dsstox-id> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id>NS00004618</susdat-id> <iupac>(2S,4S,5R,6S)-6-{[(2S,3R,5S,6R)-2-{[(3S,4R,5R,6R)-2-carboxy-6-{[(3R,4R,5S,6R)-2,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-4-yl]oxy}-4,5-dihydroxyoxan-3-yl]oxy}-5-hydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-4-yl]oxy}-3,4,5-trihydroxyoxane-2-carboxylic acid</iupac> </compound>