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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
Term:oxopurine
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Accession:CHEBI:25810 term browser browse the term
Synonyms:related_synonym: oxopurines


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Term Annotations click to browse term
  CHEBI ontology 0
    chemical entity 0
      atom 0
        nonmetal atom 0
          nitrogen atom 0
            nitrogen molecular entity 0
              organonitrogen compound 0
                organonitrogen heterocyclic compound 0
                  imidazopyrimidine 0
                    purines 0
                      oxopurine 0
                        1',3'-dimethylspiro[1H-indole-3,8'-7,9-dihydropurine]-2,2',6'-trione 0
                        1,3,7,9-tetramethyluric acid 0
                        1,3,7-trimethyl-5-hydroxyisouric acid 0
                        1,3,7-trimethyl-8-(phenylmethyl)purine-2,6-dione 0
                        1,3,7-trimethylisoguanine 0
                        1,3,7-trimethyluric acid 0
                        1,3,9-Trimethyluric acid 0
                        1,3-dibutyl-7-(2-oxopropyl)purine-2,6-dione 0
                        1,3-dimethyl-7-(5-oxohexyl)purine-2,6-dione 0
                        1,3-dimethyl-7-(phenylmethyl)-8-[2-(thiophen-2-ylmethylidene)hydrazinyl]purine-2,6-dione 0
                        1,3-dimethyl-8-(3-methyl-1-piperidinyl)-7-[2-[(5-methyl-1,3,4-thiadiazol-2-yl)thio]ethyl]purine-2,6-dione 0
                        1,3-dimethyl-8-[2-(1-pyrrolidinyl)ethylthio]-6-sulfanylidene-7H-purin-2-one 0
                        1,3-dimethyl-8-[[methyl-(phenylmethyl)amino]methyl]-7-(2-methylpropyl)purine-2,6-dione 0
                        1,3-dimethyl-8-[methyl-(phenylmethyl)amino]-7-[2-(2-pyrimidinylthio)ethyl]purine-2,6-dione 0
                        1,3-dimethyluric acid 0
                        1,7-dimethyluric acid 0
                        1,9-Dimethyluric acid 0
                        1-(3-Carboxypropyl)-3,7-dimethylxanthine 0
                        1-methyl-3-propyl-7H-xanthine 0
                        1-methyluric acid 0
                        2',3'-secoguanosine 0
                        2,8-dioxoadenine 0
                        2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N'-[2-(2-ethoxyphenoxy)-1-oxoethyl]acetohydrazide 0
                        2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N-(phenylmethyl)-N-(2-pyridinyl)acetamide 0
                        2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N-[3-[(4-methoxyphenyl)sulfamoyl]-4-methylphenyl]acetamide 0
                        2-(1,3-dimethyl-2,6-dioxo-7-purinyl)acetic acid 0
                        2-(\{8-[(3R)-3-aminopiperidin-1-yl]-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl\}methyl)benzonitrile 0
                        2-[(1,3-dimethyl-2,6-dioxo-7-propyl-8-purinyl)thio]-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)acetamide 0
                        2-[(7-ethyl-1,3-dimethyl-2,6-dioxo-8-purinyl)thio]-N-(6-methyl-2-pyridinyl)acetamide 0
                        2-[[3-methyl-7-(3-methylbutyl)-2,6-dioxo-8-purinyl]thio]propanoic acid methyl ester 0
                        2-[[7-(3-chlorobut-2-enyl)-3-methyl-2,6-dioxo-8-purinyl]thio]butanoic acid ethyl ester 0
                        2-dimethylamino-6-hydroxypurine 0
                        2-furancarboxylic acid [4-[[[1,3-dimethyl-2,6-dioxo-7-(phenylmethyl)-8-purinyl]hydrazinylidene]methyl]phenyl] ester 0
                        3,5-dimethyl-4-isoxazolecarboxylic acid (3-butyl-2,6-dioxo-7-propyl-8-purinyl)methyl ester 0
                        3,7-dimethyl-1-(phenylmethyl)-8-[(phenylmethyl)amino]purine-2,6-dione 0
                        3,7-dimethylisoguanine 0
                        3,7-dimethyluric acid 0
                        3,9-Dimethyluric acid 0
                        3-Methyluric acid 0
                        3-butyl-8-(2-fluorophenyl)-7-(phenylmethyl)purine-2,6-dione 0
                        3-isobutyl-1-methylxanthine + 0
                        3-methyl-7-(2-phenylethyl)-8-(propylamino)purine-2,6-dione 0
                        3-methyl-7-(phenylmethyl)-8-(propan-2-ylthio)purine-2,6-dione 0
                        3-methyl-7-[(4-methylphenyl)methyl]-8-[2-(1-piperidinyl)ethylthio]purine-2,6-dione 0
                        3-methyl-7-pentyl-8-(2-phenylethylthio)purine-2,6-dione 0
                        4-(2,6-dioxo-1-propyl-3,7-dihydropurin-8-yl)benzenesulfonic acid 0
                        4-[(1,3-dimethyl-2,6-dioxo-7H-purin-8-yl)methylamino]benzoic acid 0
                        4-[2-[2-[3-methyl-2,6-dioxo-8-(1-piperidinyl)-7-purinyl]ethylidene]hydrazinyl]benzoic acid 0
                        4-[7-(2-methoxyethyl)-2,6-dioxo-3-(phenylmethyl)-8-purinyl]benzonitrile 0
                        4-[[7-[(4-fluorophenyl)methyl]-1,3-dimethyl-2,6-dioxo-8-purinyl]methyl]-1-piperazinecarboxylic acid ethyl ester 0
                        5-hydroxyisouric acid + 0
                        5-hydroxyisouric acid anion 0
                        6,8-Dihydroxypurine 0
                        6-(9'-Purine-6',8'-diolyl)-2beta-suberosanone 0
                        6-Thiourate 0
                        7,8-dihydro-8-oxoguanine + 0
                        7,9-Dimethyluric acid 0
                        7-(2-chloroethyl)-1,3-dimethylpurine-2,6-dione 0
                        7-(2-ethoxyethyl)-3-methyl-8-(1-pyrrolidinyl)purine-2,6-dione 0
                        7-(2-hydroxyethyl)-1,3-dimethylpurine-2,6-dione 0
                        7-(2-methoxyethyl)-3-methyl-8-(phenylthio)purine-2,6-dione 0
                        7-(3-chlorobut-2-enyl)-1,3-dimethyl-8-(2-phenylethylamino)purine-2,6-dione 0
                        7-(3-methoxypropyl)-3-(phenylmethyl)-8-(3-thiophenyl)purine-2,6-dione 0
                        7-Ethylguanine 0
                        7-Methyluric acid 0
                        7-[(2-chloro-6-fluorophenyl)methyl]-1,3-dimethyl-8-(1-piperidinylmethyl)purine-2,6-dione 0
                        7-[(2-chloro-6-fluorophenyl)methyl]-1,3-dimethyl-8-[(3-methyl-1-piperidinyl)methyl]purine-2,6-dione 0
                        7-[(3-bromophenyl)methyl]-1,3-dimethyl-8-(2-methylpropylamino)purine-2,6-dione 0
                        7-[(3-bromophenyl)methyl]-1,3-dimethyl-8-(3-pyridinylmethylamino)purine-2,6-dione 0
                        7-[(4-fluorophenyl)methyl]-1,3-dimethyl-8-[(2-oxo-2-thiophen-2-ylethyl)thio]purine-2,6-dione 0
                        7-[2-(1,3-benzothiazol-2-ylthio)ethyl]-1,3-dimethyl-8-(3-methyl-1-piperidinyl)purine-2,6-dione 0
                        7-[2-hydroxy-3-(2-methylphenoxy)propyl]-3-methyl-8-(propan-2-ylthio)purine-2,6-dione 0
                        7-[2-hydroxy-3-(4-methoxyphenoxy)propyl]-1,3-dimethyl-8-(1-piperidinyl)purine-2,6-dione 0
                        7-[2-hydroxy-3-[2-hydroxyethyl(methyl)amino]propyl]-1,3-dimethylpurine-2,6-dione 0
                        7-\{2-hydroxy-3-[(naphthalen-1-yl)oxy]propyl\}-3-methyl-8-(morpholin-4-yl)-3,7-dihydropurine-2,6-dione 0
                        7-benzyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione 0
                        7-but-2-enyl-3-methyl-8-(3-phenylpropylthio)purine-2,6-dione 0
                        7-but-2-enyl-3-methyl-8-(phenylmethylthio)purine-2,6-dione 0
                        7-hydroxyguanine 0
                        7-methylxanthine 0
                        8-(1,3-benzothiazol-2-ylthio)-3-methyl-7-pentylpurine-2,6-dione 0
                        8-(2,5-dimethylphenoxy)-1,3-dimethyl-7-prop-2-enylpurine-2,6-dione 0
                        8-(3-ethoxypropylamino)-1,3-dimethyl-7H-purine-2,6-dione 0
                        8-(4-methoxyphenyl)-7-methyl-3-(phenylmethyl)purine-2,6-dione 0
                        8-(butan-2-ylthio)-7-[(4-chlorophenyl)methyl]-3-methylpurine-2,6-dione 0
                        8-(methoxymethyl)-1-methyl-3-(2-methylpropyl)-7H-purine-2,6-dione 0
                        8-Chloroxanthine 0
                        8-Hydroxypurine 0
                        8-Hydroxythioguanine 0
                        8-Nitroguanine 0
                        8-[(1-ethyl-3-piperidinyl)thio]-1,3-dimethyl-6-sulfanylidene-7H-purin-2-one 0
                        8-[(2-fluoroanilino)hydrazinylidene]-1,3-dimethylpurine-2,6-dione 0
                        8-[2-(2-bromo-3-phenylprop-2-enylidene)hydrazinyl]-7-(2-hydroxyethyl)-3-methylpurine-2,6-dione 0
                        8-[[4-[2-furanyl(oxo)methyl]-1-piperazinyl]methyl]-1,3-dimethyl-7-[(2-methylphenyl)methyl]purine-2,6-dione 0
                        8-[[4-[2-furanyl(oxo)methyl]-1-piperazinyl]methyl]-1,3-dimethyl-7-propylpurine-2,6-dione 0
                        8-anilino-1,3-dimethyl-7H-purine-2,6-dione 0
                        8-cyclopentyl-1,3-dimethyl-7H-purine-2,6-dione 0
                        8-hydroxy-7-methylguanine 0
                        8-methylcaffeine 0
                        8-oxo-fusatin 0
                        8-oxoadenine 0
                        8-oxoguanine 0
                        8-phenyl-1,3-dipropyl-7H-purine-2,6-dione 0
                        9-Carboxymethoxymethylguanine 0
                        9-Methyluric acid 0
                        9-Methylxanthine 0
                        Acremolin C 0
                        CD 1790 0
                        DPCPX 0
                        Dimethyluric acid 0
                        Furafylline 0
                        LSM-1748 0
                        Migrenin (TN) 0
                        N-(4-cyanophenyl)-2-[4-(2,6-dioxo-1,3-dipropyl-7H-purin-8-yl)phenoxy]acetamide 0
                        O6-CYCLOHEXYLMETHOXY-2-(4'-SULPHAMOYLANILINO) PURINE 0
                        Pentoxifylline 0
                        Propentofylline 0
                        Proxyphylline 0
                        Pyrimido[1,2-a]purin-10(1H)-one 0
                        Rolofylline 0
                        Tetrahydroindol 5 0
                        Theobromine-d6 0
                        Theophylline sodium acetate 0
                        Thioxanthine monophosphate 0
                        Tonapofylline 0
                        acyclovir 0
                        bamifylline 0
                        beta-D-3-Ribofuranosyluric acid 0
                        cafaminol 0
                        cafedrine 0
                        caffeine-(trimethyl-(13)C3) 0
                        caffeine-d9 0
                        cipamfylline 0
                        ddhGMP 0
                        ddhGTP 0
                        dimethazan 0
                        doxofylline 0
                        dyphylline + 0
                        enprofylline + 0
                        entecavir (anhydrous) + 0
                        etamiphylline 0
                        etofylline clofibrate 0
                        etofylline nicotinate 0
                        fenetylline 0
                        ganciclovir + 0
                        guanine + 0
                        hypoxanthine + 0
                        hypoxanthine 3-N-oxide + 0
                        isoguanine 0
                        istradefylline 0
                        methylguanine + 0
                        methylhypoxanthine + 0
                        pentifylline 0
                        phentetramine 0
                        pimefylline 0
                        protheobromine 0
                        reproterol 0
                        theodrenaline 0
                        urate(2-) + 0
                        uric acid + 0
                        xanthine + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 0
    subatomic particle 0
      composite particle 0
        hadron 0
          baryon 0
            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    p-block element atom 0
                      carbon group element atom 0
                        carbon atom 0
                          organic molecular entity 0
                            organic molecule 0
                              organic cyclic compound 0
                                organic heterocyclic compound 0
                                  organic heteropolycyclic compound 0
                                    organic heterobicyclic compound 0
                                      imidazopyrimidine 0
                                        purines 0
                                          oxopurine 0
                                            1',3'-dimethylspiro[1H-indole-3,8'-7,9-dihydropurine]-2,2',6'-trione 0
                                            1,3,7,9-tetramethyluric acid 0
                                            1,3,7-trimethyl-5-hydroxyisouric acid 0
                                            1,3,7-trimethyl-8-(phenylmethyl)purine-2,6-dione 0
                                            1,3,7-trimethylisoguanine 0
                                            1,3,7-trimethyluric acid 0
                                            1,3,9-Trimethyluric acid 0
                                            1,3-dibutyl-7-(2-oxopropyl)purine-2,6-dione 0
                                            1,3-dimethyl-7-(5-oxohexyl)purine-2,6-dione 0
                                            1,3-dimethyl-7-(phenylmethyl)-8-[2-(thiophen-2-ylmethylidene)hydrazinyl]purine-2,6-dione 0
                                            1,3-dimethyl-8-(3-methyl-1-piperidinyl)-7-[2-[(5-methyl-1,3,4-thiadiazol-2-yl)thio]ethyl]purine-2,6-dione 0
                                            1,3-dimethyl-8-[2-(1-pyrrolidinyl)ethylthio]-6-sulfanylidene-7H-purin-2-one 0
                                            1,3-dimethyl-8-[[methyl-(phenylmethyl)amino]methyl]-7-(2-methylpropyl)purine-2,6-dione 0
                                            1,3-dimethyl-8-[methyl-(phenylmethyl)amino]-7-[2-(2-pyrimidinylthio)ethyl]purine-2,6-dione 0
                                            1,3-dimethyluric acid 0
                                            1,7-dimethyluric acid 0
                                            1,9-Dimethyluric acid 0
                                            1-(3-Carboxypropyl)-3,7-dimethylxanthine 0
                                            1-methyl-3-propyl-7H-xanthine 0
                                            1-methyluric acid 0
                                            2',3'-secoguanosine 0
                                            2,8-dioxoadenine 0
                                            2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N'-[2-(2-ethoxyphenoxy)-1-oxoethyl]acetohydrazide 0
                                            2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N-(phenylmethyl)-N-(2-pyridinyl)acetamide 0
                                            2-(1,3-dimethyl-2,6-dioxo-7-purinyl)-N-[3-[(4-methoxyphenyl)sulfamoyl]-4-methylphenyl]acetamide 0
                                            2-(1,3-dimethyl-2,6-dioxo-7-purinyl)acetic acid 0
                                            2-(\{8-[(3R)-3-aminopiperidin-1-yl]-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl\}methyl)benzonitrile 0
                                            2-[(1,3-dimethyl-2,6-dioxo-7-propyl-8-purinyl)thio]-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)acetamide 0
                                            2-[(7-ethyl-1,3-dimethyl-2,6-dioxo-8-purinyl)thio]-N-(6-methyl-2-pyridinyl)acetamide 0
                                            2-[[3-methyl-7-(3-methylbutyl)-2,6-dioxo-8-purinyl]thio]propanoic acid methyl ester 0
                                            2-[[7-(3-chlorobut-2-enyl)-3-methyl-2,6-dioxo-8-purinyl]thio]butanoic acid ethyl ester 0
                                            2-dimethylamino-6-hydroxypurine 0
                                            2-furancarboxylic acid [4-[[[1,3-dimethyl-2,6-dioxo-7-(phenylmethyl)-8-purinyl]hydrazinylidene]methyl]phenyl] ester 0
                                            3,5-dimethyl-4-isoxazolecarboxylic acid (3-butyl-2,6-dioxo-7-propyl-8-purinyl)methyl ester 0
                                            3,7-dimethyl-1-(phenylmethyl)-8-[(phenylmethyl)amino]purine-2,6-dione 0
                                            3,7-dimethylisoguanine 0
                                            3,7-dimethyluric acid 0
                                            3,9-Dimethyluric acid 0
                                            3-Methyluric acid 0
                                            3-butyl-8-(2-fluorophenyl)-7-(phenylmethyl)purine-2,6-dione 0
                                            3-isobutyl-1-methylxanthine + 0
                                            3-methyl-7-(2-phenylethyl)-8-(propylamino)purine-2,6-dione 0
                                            3-methyl-7-(phenylmethyl)-8-(propan-2-ylthio)purine-2,6-dione 0
                                            3-methyl-7-[(4-methylphenyl)methyl]-8-[2-(1-piperidinyl)ethylthio]purine-2,6-dione 0
                                            3-methyl-7-pentyl-8-(2-phenylethylthio)purine-2,6-dione 0
                                            4-(2,6-dioxo-1-propyl-3,7-dihydropurin-8-yl)benzenesulfonic acid 0
                                            4-[(1,3-dimethyl-2,6-dioxo-7H-purin-8-yl)methylamino]benzoic acid 0
                                            4-[2-[2-[3-methyl-2,6-dioxo-8-(1-piperidinyl)-7-purinyl]ethylidene]hydrazinyl]benzoic acid 0
                                            4-[7-(2-methoxyethyl)-2,6-dioxo-3-(phenylmethyl)-8-purinyl]benzonitrile 0
                                            4-[[7-[(4-fluorophenyl)methyl]-1,3-dimethyl-2,6-dioxo-8-purinyl]methyl]-1-piperazinecarboxylic acid ethyl ester 0
                                            5-hydroxyisouric acid + 0
                                            5-hydroxyisouric acid anion 0
                                            6,8-Dihydroxypurine 0
                                            6-(9'-Purine-6',8'-diolyl)-2beta-suberosanone 0
                                            6-Thiourate 0
                                            7,8-dihydro-8-oxoguanine + 0
                                            7,9-Dimethyluric acid 0
                                            7-(2-chloroethyl)-1,3-dimethylpurine-2,6-dione 0
                                            7-(2-ethoxyethyl)-3-methyl-8-(1-pyrrolidinyl)purine-2,6-dione 0
                                            7-(2-hydroxyethyl)-1,3-dimethylpurine-2,6-dione 0
                                            7-(2-methoxyethyl)-3-methyl-8-(phenylthio)purine-2,6-dione 0
                                            7-(3-chlorobut-2-enyl)-1,3-dimethyl-8-(2-phenylethylamino)purine-2,6-dione 0
                                            7-(3-methoxypropyl)-3-(phenylmethyl)-8-(3-thiophenyl)purine-2,6-dione 0
                                            7-Ethylguanine 0
                                            7-Methyluric acid 0
                                            7-[(2-chloro-6-fluorophenyl)methyl]-1,3-dimethyl-8-(1-piperidinylmethyl)purine-2,6-dione 0
                                            7-[(2-chloro-6-fluorophenyl)methyl]-1,3-dimethyl-8-[(3-methyl-1-piperidinyl)methyl]purine-2,6-dione 0
                                            7-[(3-bromophenyl)methyl]-1,3-dimethyl-8-(2-methylpropylamino)purine-2,6-dione 0
                                            7-[(3-bromophenyl)methyl]-1,3-dimethyl-8-(3-pyridinylmethylamino)purine-2,6-dione 0
                                            7-[(4-fluorophenyl)methyl]-1,3-dimethyl-8-[(2-oxo-2-thiophen-2-ylethyl)thio]purine-2,6-dione 0
                                            7-[2-(1,3-benzothiazol-2-ylthio)ethyl]-1,3-dimethyl-8-(3-methyl-1-piperidinyl)purine-2,6-dione 0
                                            7-[2-hydroxy-3-(2-methylphenoxy)propyl]-3-methyl-8-(propan-2-ylthio)purine-2,6-dione 0
                                            7-[2-hydroxy-3-(4-methoxyphenoxy)propyl]-1,3-dimethyl-8-(1-piperidinyl)purine-2,6-dione 0
                                            7-[2-hydroxy-3-[2-hydroxyethyl(methyl)amino]propyl]-1,3-dimethylpurine-2,6-dione 0
                                            7-\{2-hydroxy-3-[(naphthalen-1-yl)oxy]propyl\}-3-methyl-8-(morpholin-4-yl)-3,7-dihydropurine-2,6-dione 0
                                            7-benzyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione 0
                                            7-but-2-enyl-3-methyl-8-(3-phenylpropylthio)purine-2,6-dione 0
                                            7-but-2-enyl-3-methyl-8-(phenylmethylthio)purine-2,6-dione 0
                                            7-hydroxyguanine 0
                                            7-methylxanthine 0
                                            8-(1,3-benzothiazol-2-ylthio)-3-methyl-7-pentylpurine-2,6-dione 0
                                            8-(2,5-dimethylphenoxy)-1,3-dimethyl-7-prop-2-enylpurine-2,6-dione 0
                                            8-(3-ethoxypropylamino)-1,3-dimethyl-7H-purine-2,6-dione 0
                                            8-(4-methoxyphenyl)-7-methyl-3-(phenylmethyl)purine-2,6-dione 0
                                            8-(butan-2-ylthio)-7-[(4-chlorophenyl)methyl]-3-methylpurine-2,6-dione 0
                                            8-(methoxymethyl)-1-methyl-3-(2-methylpropyl)-7H-purine-2,6-dione 0
                                            8-Chloroxanthine 0
                                            8-Hydroxypurine 0
                                            8-Hydroxythioguanine 0
                                            8-Nitroguanine 0
                                            8-[(1-ethyl-3-piperidinyl)thio]-1,3-dimethyl-6-sulfanylidene-7H-purin-2-one 0
                                            8-[(2-fluoroanilino)hydrazinylidene]-1,3-dimethylpurine-2,6-dione 0
                                            8-[2-(2-bromo-3-phenylprop-2-enylidene)hydrazinyl]-7-(2-hydroxyethyl)-3-methylpurine-2,6-dione 0
                                            8-[[4-[2-furanyl(oxo)methyl]-1-piperazinyl]methyl]-1,3-dimethyl-7-[(2-methylphenyl)methyl]purine-2,6-dione 0
                                            8-[[4-[2-furanyl(oxo)methyl]-1-piperazinyl]methyl]-1,3-dimethyl-7-propylpurine-2,6-dione 0
                                            8-anilino-1,3-dimethyl-7H-purine-2,6-dione 0
                                            8-cyclopentyl-1,3-dimethyl-7H-purine-2,6-dione 0
                                            8-hydroxy-7-methylguanine 0
                                            8-methylcaffeine 0
                                            8-oxo-fusatin 0
                                            8-oxoadenine 0
                                            8-oxoguanine 0
                                            8-phenyl-1,3-dipropyl-7H-purine-2,6-dione 0
                                            9-Carboxymethoxymethylguanine 0
                                            9-Methyluric acid 0
                                            9-Methylxanthine 0
                                            Acremolin C 0
                                            CD 1790 0
                                            DPCPX 0
                                            Dimethyluric acid 0
                                            Furafylline 0
                                            LSM-1748 0
                                            Migrenin (TN) 0
                                            N-(4-cyanophenyl)-2-[4-(2,6-dioxo-1,3-dipropyl-7H-purin-8-yl)phenoxy]acetamide 0
                                            O6-CYCLOHEXYLMETHOXY-2-(4'-SULPHAMOYLANILINO) PURINE 0
                                            Pentoxifylline 0
                                            Propentofylline 0
                                            Proxyphylline 0
                                            Pyrimido[1,2-a]purin-10(1H)-one 0
                                            Rolofylline 0
                                            Tetrahydroindol 5 0
                                            Theobromine-d6 0
                                            Theophylline sodium acetate 0
                                            Thioxanthine monophosphate 0
                                            Tonapofylline 0
                                            acyclovir 0
                                            bamifylline 0
                                            beta-D-3-Ribofuranosyluric acid 0
                                            cafaminol 0
                                            cafedrine 0
                                            caffeine-(trimethyl-(13)C3) 0
                                            caffeine-d9 0
                                            cipamfylline 0
                                            ddhGMP 0
                                            ddhGTP 0
                                            dimethazan 0
                                            doxofylline 0
                                            dyphylline + 0
                                            enprofylline + 0
                                            entecavir (anhydrous) + 0
                                            etamiphylline 0
                                            etofylline clofibrate 0
                                            etofylline nicotinate 0
                                            fenetylline 0
                                            ganciclovir + 0
                                            guanine + 0
                                            hypoxanthine + 0
                                            hypoxanthine 3-N-oxide + 0
                                            isoguanine 0
                                            istradefylline 0
                                            methylguanine + 0
                                            methylhypoxanthine + 0
                                            pentifylline 0
                                            phentetramine 0
                                            pimefylline 0
                                            protheobromine 0
                                            reproterol 0
                                            theodrenaline 0
                                            urate(2-) + 0
                                            uric acid + 0
                                            xanthine + 0
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