<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 xanthines. These are purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety.</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="Organic polycyclic compounds containing an imidazole ring fused to a pyrimidine ring. Imidazole is 5-membered ring consisting of three carbon atoms, and two nitrogen centers at the 1- and 3-positions. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions." href="http://classyfire.wishartlab.com/tax_nodes/C0001797" rel="noopener" target="_blank">Imidazopyrimidines</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="Aromatic heterocyclic compounds containing a purine moiety, which is formed a pyrimidine-ring ring fused to an imidazole ring." href="http://classyfire.wishartlab.com/tax_nodes/C0000245" rel="noopener" target="_blank">Purines and purine derivatives</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="Purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety." href="http://classyfire.wishartlab.com/tax_nodes/C0000247" rel="noopener" target="_blank">Xanthines</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="Purines that carry a C=O group at position 6. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring." href="http://classyfire.wishartlab.com/tax_nodes/C0001505" rel="noopener" target="_blank">6-oxopurines</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Naturally occurring chemical compounds that contain mostly basic nitrogen atoms. This group also includes some related compounds with neutral and even weakly acidic properties. Also some synthetic compounds of similar structure are attributed to alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and more rarely other elements such as chlorine, bromine, and phosphorus." href="http://classyfire.wishartlab.com/tax_nodes/C0000279" rel="noopener" target="_blank">Alkaloids and derivatives</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions." href="http://classyfire.wishartlab.com/tax_nodes/C0000291" rel="noopener" target="_blank">Pyrimidones</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing an amine group, which is indirectly attached to a carbonyl via an intervening vinyl (&gt;C=C&lt;) moiety." href="http://classyfire.wishartlab.com/tax_nodes/C0003890" rel="noopener" target="_blank">Vinylogous amides</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing an imidazole ring, which is an aromatic five-member ring with two nitrogen atoms at positions 1 and 3, and three carbon atoms." href="http://classyfire.wishartlab.com/tax_nodes/C0000078" rel="noopener" target="_blank">Imidazoles</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing an aromatic ring where a carbon atom is linked to an hetero atom." href="http://classyfire.wishartlab.com/tax_nodes/C0004144" rel="noopener" target="_blank">Heteroaromatic compounds</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing two amine groups joined by a carbonyl (C=O) functional group." href="http://classyfire.wishartlab.com/tax_nodes/C0000517" rel="noopener" target="_blank">Ureas</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing a lactam ring, which is a cyclic amide of amino carboxylic acids, having a 1-azacycloalkan-2-one structure (or an analogue having unsaturation or heteroatoms replacing one or more carbon atoms of the ring)." href="http://classyfire.wishartlab.com/tax_nodes/C0000160" rel="noopener" target="_blank">Lactams</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 nitrogen atom and one carbon atom linked to each other." href="http://classyfire.wishartlab.com/tax_nodes/C0004139" rel="noopener" target="_blank">Azacyclic compounds</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Compounds containing a bond between carbon a pnictogen atom. Pnictogens are p-block element atoms that are in the group 15 of the periodic table." href="http://classyfire.wishartlab.com/tax_nodes/C0004557" rel="noopener" target="_blank">Organopnictogen compounds</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="Organic compounds containing a bond between a carbon atom and an oxygen atom." href="http://classyfire.wishartlab.com/tax_nodes/C0000323" rel="noopener" target="_blank">Organooxygen compounds</a></span><span class="list-separator"> / </span><span class="separated-list-item"><a class="classyfire-taxnode" data-content="Organic compounds containing a nitrogen atom." href="http://classyfire.wishartlab.com/tax_nodes/C0000278" rel="noopener" target="_blank">Organonitrogen compounds</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 class="list-separator"> / </span><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></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 4 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">6-oxopurine</span><span class="list-separator"> / </span><span class="separated-list-item">Alkaloid or derivatives</span><span class="list-separator"> / </span><span class="separated-list-item">Aromatic heteropolycyclic compound</span><span class="list-separator"> / </span><span class="separated-list-item">Azacycle</span><span class="list-separator"> / </span><span class="separated-list-item">Azole</span><span class="list-separator"> / </span><span class="separated-list-item">Heteroaromatic compound</span><span class="list-separator"> / </span><span class="separated-list-item">Hydrocarbon derivative</span><span class="list-separator"> / </span><span class="separated-list-item">Imidazole</span><span class="list-separator"> / </span><span class="separated-list-item">Lactam</span><span class="list-separator"> / </span><span class="separated-list-item">Organic nitrogen compound</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">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">Organonitrogen 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">Organopnictogen compound</span><span class="list-separator"> / </span><span class="separated-list-item">Purinone</span><span class="list-separator"> / </span><span class="separated-list-item">Pyrimidine</span><span class="list-separator"> / </span><span class="separated-list-item">Pyrimidone</span><span class="list-separator"> / </span><span class="separated-list-item">Urea</span><span class="list-separator"> / </span><span class="separated-list-item">Vinylogous amide</span><span class="list-separator"> / </span><span class="separated-list-item">Xanthine</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 11 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">Aromatic heteropolycyclic 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">dimethylxanthine (<a href="https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28177" rel="noopener" target="_blank">CHEBI:28177</a>) </span><span class="list-separator"> / </span><span class="simple-separated-list-item">Purine alkaloids (<a href="http://www.genome.jp/dbget-bin/www_bget?cpd:C07130" rel="noopener" target="_blank">C07130</a>) </span><span class="list-separator"> / </span><span class="simple-separated-list-item">a small molecule (<a href="http://metacyc.org/META/new-image?type=COMPOUND&amp;object=CPD-12479" rel="noopener" target="_blank">CPD-12479</a>) </span></span></dd></dl>