82283 <common-name>18,21-Dihydroxypregn-4-ene-3,20-dione</common-name> <description>18,21-Dihydroxypregn-4-ene-3,20-dione belongs to the hydroxysteroids, a subclass of steroids and steroid derivatives within the organic compounds. It is classified as a lipid and lipid-like molecule with the chemical formula C21H30O4 and an average molecular weight of 346.47 g/mol.</description> <cas>379-68-0</cas> <pubchem-id>64970</pubchem-id> <chemical-formula>C21H30O4</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">2026-04-04T18:49:01Z</created-at> <updated-at type="dateTime">2026-04-04T18:49:01Z</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>[H][C@@]1(CC[C@@]2([H])[C@]3([H])CCC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12CO)C(=O)CO</moldb-smiles> <moldb-formula>C21H30O4</moldb-formula> <moldb-inchi>InChI=1/C21H30O4/c1-20-8-6-14(24)10-13(20)2-3-15-16(20)7-9-21(12-23)17(15)4-5-18(21)19(25)11-22/h10,15-18,22-23H,2-9,11-12H2,1H3</moldb-inchi> <moldb-inchikey>VPJHREHKRNIYDB-TZGXILGRSA-N</moldb-inchikey> <moldb-average-mass type="decimal">346.467</moldb-average-mass> <moldb-mono-mass type="decimal">346.2144094</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp nil="true"/> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id nil="true"/> <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>CHEM078176</chemdb-id> <dsstox-id>DTXSID90958920</dsstox-id> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id>NS00041752</susdat-id> <iupac nil="true"/> <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>Lipids and lipid-like molecules</superklass> <klass>Steroids and steroid derivatives</klass> <subklass>Hydroxysteroids</subklass> <paper-count type="integer">60</paper-count> <sync-id>CED0022201</sync-id> <structure-inchikey>VPJHREHKRNIYDB-TZGXILGRSA-N</structure-inchikey> <structure-fingerprint>1008000000000000000888000000080000000000000020000000002000020000000000000000020000000000000000000000080000000000000000100020081010040000040200000100000000200000020000000000000000000000000000000000000010000000040000000000000000000020000000004000000000000100000000048000000010000000000000000200000400000001000000000000020020001100004000000000000080000000400000000000000000000000000000000000000000000000000000000000000800000000000000000200000000000000000000000000000000040480000000400000000000000000000000000040000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAAAZAAAAHAAAAIABBiA0AAAAAgEEBgBgAAAA AgIGAGAAAAACAgYgNAAAAAEBBAYgNAAAAAIBBAYAYAAAAAICBgBgAAAAAgIG ACgAAAADBAYAaAAAAAMDAQYAKAAAAAMECAAoAAAAAwIGAGAAAAACAgYAYAAA AAICBiAkAAAAAgQGAGAAAAABAwYgNAAAAAEBBAYAYAAAAAICBgBgAAAAAgIG ICQAAAACBAYAYAAAAAICCABgAAAAAQEGACgAAAADBAgAKAAAAAMCBgBgAAAA AgIIAGAAAAABAQsAAQABAgACAwADBAAEBQAFBgAGBwAHCCgCCAkgCQooAgkL AAsMAAwNAA0OAA0PAA8QABARABESABITABMUAAAVABUWCAIVFwAXGAASAAAS AwAPBAANBwBCBAAAAAUAAQIDEgYFBgcNDwQGCAkLDA0HBhAREgMEDxcEAAAA AAAAABY= </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T04:28:31Z</structure-indexed-at> </compound>