<dl class="inner-dl"><dt class="col-md-4 col-sm-5" id="description">Description</dt><dd class="col-md-8 col-sm-7">This compound belongs to the class of organic compounds known as butenolides. These are dihydrofurans with a carbonyl group at the C2 carbon atom.</dd><dt class="col-md-4 col-sm-5" id="kingdom">Kingdom</dt><dd class="col-md-8 col-sm-7"><a class="classyfire-taxnode" data-content="Compounds that contain at least one carbon atom, excluding isocyanide/cyanide and their non-hydrocarbyl derivatives, thiophosgene, carbon diselenide, carbon monosulfide, carbon disulfide, carbon subsulfide, carbon monoxide, carbon dioxide, Carbon suboxide, and dicarbon monoxide." href="http://classyfire.wishartlab.com/tax_nodes/C0000000" rel="noopener" target="_blank">Organic compounds</a></dd><dt class="col-md-4 col-sm-5" id="super-class">Super Class</dt><dd class="col-md-8 col-sm-7"><a class="classyfire-taxnode" data-content="Compounds containing a ring with least one carbon atom and one non-carbon atom." href="http://classyfire.wishartlab.com/tax_nodes/C0000002" rel="noopener" target="_blank">Organoheterocyclic compounds</a></dd><dt class="col-md-4 col-sm-5" id="class">Class</dt><dd class="col-md-8 col-sm-7"><a class="classyfire-taxnode" data-content="Compounds containing a dihydrofuran moiety, which is a furan derivative with only one double bond." href="http://classyfire.wishartlab.com/tax_nodes/C0001983" rel="noopener" target="_blank">Dihydrofurans</a></dd><dt class="col-md-4 col-sm-5" id="sub-class">Sub Class</dt><dd class="col-md-8 col-sm-7"><a class="classyfire-taxnode" data-content="Compounds containing a furan ring bearing a ketone group." href="http://classyfire.wishartlab.com/tax_nodes/C0001982" rel="noopener" target="_blank">Furanones</a></dd><dt class="col-md-4 col-sm-5" id="direct-parent">Direct Parent</dt><dd class="col-md-8 col-sm-7"><a class="classyfire-taxnode" data-content="Dihydrofurans with a carbonyl group at the C2 carbon atom." href="http://classyfire.wishartlab.com/tax_nodes/C0002223" rel="noopener" target="_blank">Butenolides</a></dd><dt class="col-md-4 col-sm-5" id="alternative-parents">Alternative Parents</dt><dd class="col-md-8 col-sm-7"><span class="separated-list-container"><span class="separated-list col-lg-12 col-xl-6"><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing a hydroxyl group, which is indirectly attached to a carbonyl via an intervening vinyl (&gt;C=C&lt;) moiety." href="http://classyfire.wishartlab.com/tax_nodes/C0003889" rel="noopener" target="_blank">Vinylogous acids</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="An alpha,beta-unsaturated carboxylic ester of general formula R1C(R2)=C(R3)C(=O)OR4 (R4= organyl compound) in which the ester C=O function is conjugated to a C=C double bond at the alpha,beta position." href="http://classyfire.wishartlab.com/tax_nodes/C0003626" rel="noopener" target="_blank">Enoate esters</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing a secondary alcohol functional group, with the general structure HOC(R)(R') (R,R'=alkyl, aryl)." href="http://classyfire.wishartlab.com/tax_nodes/C0001661" rel="noopener" target="_blank">Secondary alcohols</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Cyclic esters of hydroxy carboxylic acids, containing a 1-oxacycloalkan-2-one structure, or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring." href="http://classyfire.wishartlab.com/tax_nodes/C0000050" rel="noopener" target="_blank">Lactones</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing the enediol functional group, with the formula HO(R)C=C(R')OH." href="http://classyfire.wishartlab.com/tax_nodes/C0000131" rel="noopener" target="_blank">Enediols</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Polyols containing an alcohol group at two adjacent positions." href="http://classyfire.wishartlab.com/tax_nodes/C0002467" rel="noopener" target="_blank">1,2-diols</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing an heterocycle with at least one oxygen atom linked to a ring carbon." href="http://classyfire.wishartlab.com/tax_nodes/C0004140" rel="noopener" target="_blank">Oxacyclic compounds</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Carboxylic acids containing exactly one carboxyl groups." href="http://classyfire.wishartlab.com/tax_nodes/C0001137" rel="noopener" target="_blank">Monocarboxylic acids and derivatives</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds comprising the primary alcohol functional group, with the general structure RCOH (R=alkyl, aryl)." href="http://classyfire.wishartlab.com/tax_nodes/C0000286" rel="noopener" target="_blank">Primary alcohols</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing an oxide group." href="http://classyfire.wishartlab.com/tax_nodes/C0003940" rel="noopener" target="_blank">Organic oxides</a></span></span></span><span class="hidden-taxonomy" style="display: none"><span class="list-separator"> / </span><span class="separated-list-container"><span class="separated-list col-lg-12 col-xl-6"><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Derivatives of hydrocarbons obtained by substituting one or more carbon atoms by an heteroatom. They contain at least one carbon atom and heteroatom." href="http://classyfire.wishartlab.com/tax_nodes/C0004150" rel="noopener" target="_blank">Hydrocarbon derivatives</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing a carbonyl group, with the general structure RC(=O)R', where R=organyl, R'=H, N, O, organyl group or halide group." href="http://classyfire.wishartlab.com/tax_nodes/C0001831" rel="noopener" target="_blank">Carbonyl compounds</a></span></span></span></span><a class="taxonomy-toggler" href="javascript:void();"><div class="drugbank-icon icon-expand"><svg class="icon" role="img" title="expand">
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</div> show 2 more</a></dd><dt class="col-md-4 col-sm-5" id="substituents">Substituents</dt><dd class="col-md-8 col-sm-7"><span class="separated-list-container"><span class="separated-list col-lg-12 col-xl-6"><span class="separated-list-item">1,2-diol</span><span class="list-separator"> / </span><span class="separated-list-item">2-furanone</span><span class="list-separator"> / </span><span class="separated-list-item">Alcohol</span><span class="list-separator"> / </span><span class="separated-list-item">Aliphatic heteromonocyclic compound</span><span class="list-separator"> / </span><span class="separated-list-item">Alpha,beta-unsaturated carboxylic ester</span><span class="list-separator"> / </span><span class="separated-list-item">Carbonyl group</span><span class="list-separator"> / </span><span class="separated-list-item">Carboxylic acid derivative</span><span class="list-separator"> / </span><span class="separated-list-item">Carboxylic acid ester</span><span class="list-separator"> / </span><span class="separated-list-item">Enediol</span><span class="list-separator"> / </span><span class="separated-list-item">Enoate ester</span></span></span><span class="hidden-taxonomy" style="display: none"><span class="list-separator"> / </span><span class="separated-list-container"><span class="separated-list col-lg-12 col-xl-6"><span class="separated-list-item">Hydrocarbon derivative</span><span class="list-separator"> / </span><span class="separated-list-item">Lactone</span><span class="list-separator"> / </span><span class="separated-list-item">Monocarboxylic acid or derivatives</span><span class="list-separator"> / </span><span class="separated-list-item">Organic oxide</span><span class="list-separator"> / </span><span class="separated-list-item">Organic oxygen compound</span><span class="list-separator"> / </span><span class="separated-list-item">Organooxygen compound</span><span class="list-separator"> / </span><span class="separated-list-item">Oxacycle</span><span class="list-separator"> / </span><span class="separated-list-item">Primary alcohol</span><span class="list-separator"> / </span><span class="separated-list-item">Secondary alcohol</span><span class="list-separator"> / </span><span class="separated-list-item">Vinylogous acid</span></span></span></span><a class="taxonomy-toggler" href="javascript:void();"><div class="drugbank-icon icon-expand"><svg class="icon" role="img" title="expand">
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</div> show 10 more</a></dd><dt class="col-md-4 col-sm-5" id="molecular-framework">Molecular Framework</dt><dd class="col-md-8 col-sm-7">Aliphatic heteromonocyclic compounds</dd><dt class="col-md-4 col-sm-5" id="external-descriptors">External Descriptors</dt><dd class="col-md-8 col-sm-7"><span class="inline-separated-list-container"><span class="simple-separated-list-item">ascorbic acid (<a href="https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29073" rel="noopener" target="_blank">CHEBI:29073</a>) </span><span class="list-separator"> / </span><span class="simple-separated-list-item">Water-soluble vitamins (<a href="http://www.genome.jp/dbget-bin/www_bget?cpd:C00072" rel="noopener" target="_blank">C00072</a>) </span></span></dd></dl>