71313 <common-name>Ethyl 5-hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylate</common-name> <description>Ethyl 5-hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylate belongs to the pyranones and derivatives, a subclass of pyrans within the organic compounds. It is classified as an organoheterocyclic compound with the formula C9H10O5 and an average molecular weight of 198.17 g/mol.</description> <cas>24056-48-2</cas> <pubchem-id>90353</pubchem-id> <chemical-formula>C9H10O5</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">2026-04-03T18:39:56Z</created-at> <updated-at type="dateTime">2026-04-03T18:39:56Z</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 nil="true"/> <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>CCOC(=O)C1=CC(=O)C(O)=C(C)O1</moldb-smiles> <moldb-formula>C9H10O5</moldb-formula> <moldb-inchi>InChI=1S/C9H10O5/c1-3-13-9(12)7-4-6(10)8(11)5(2)14-7/h4,11H,3H2,1-2H3</moldb-inchi> <moldb-inchikey>LXHGALLQKKIMAZ-UHFFFAOYSA-N</moldb-inchikey> <moldb-average-mass type="decimal">198.174</moldb-average-mass> <moldb-mono-mass type="decimal">198.052823</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp nil="true"/> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id>81573</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>CHEM067206</chemdb-id> <dsstox-id>DTXSID40178797</dsstox-id> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id>NS00027547</susdat-id> <iupac>ethyl 5-hydroxy-6-methyl-4-oxopyran-2-carboxylate</iupac> <moldb-polar-surface-area nil="true"/> <moldb-refractivity nil="true"/> <moldb-polarizability nil="true"/> <moldb-rotatable-bond-count nil="true"/> <moldb-acceptor-count nil="true"/> <moldb-donor-count nil="true"/> <moldb-pka-strongest-acidic nil="true"/> <moldb-pka-strongest-basic nil="true"/> <moldb-physiological-charge nil="true"/> <moldb-number-of-rings nil="true"/> <moldb-alogps-logp nil="true"/> <moldb-alogps-logs nil="true"/> <moldb-alogps-solubility nil="true"/> <kingdom>Organic compounds</kingdom> <superklass>Organoheterocyclic compounds</superklass> <klass>Pyrans</klass> <subklass>Pyranones and derivatives</subklass> <paper-count type="integer">0</paper-count> <sync-id>CED0139846</sync-id> <structure-inchikey>LXHGALLQKKIMAZ-UHFFFAOYSA-N</structure-inchikey> <structure-fingerprint>1000000000000000008000000000000000500000000000002000000000000000800010020200200000000000000000000000000000000000000000000000000000000000000000000000000000000000208000000001000000000000000100000000000100000010000000001000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000200200000000000000000000000000000000800000000000000000000000000000000000000000000000000000028000000000000008000000000000020000000200000000000000000000000000000c0000000000400000080000000000000000000000000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAAAOAAAADgAAAIABBgBgAAAAAQMGAGAAAAAC AggAKAAAAAMCBgAoAAAAAwQIACgAAAADAgZAKAAAAAMEBkBoAAAAAwMBBkAo AAAAAwQIACgAAAADAgZAKAAAAAMECABoAAAAAwEBBkAoAAAAAwQGAGAAAAAB AwhAKAAAAAMCCwABAAECAAIDIAMEKAIDBSAFBmgMBgdoDAcIKAIHCWgMCQog CQtoDAsMAAsNaAwNBWgMQgEAAAAGBQ0LCQcGFwQAAAAAAAAAFg== </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T04:20:36Z</structure-indexed-at> </compound>