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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2006-08-13 16:35:40 UTC
Update Date2023-02-21 17:17:00 UTC
HMDB IDHMDB0004308
Secondary Accession Numbers
  • HMDB04308
Metabolite Identification
Common Name7,9-Dimethyluric acid
Description7,9-Dimethyluric acid is a methyl derivative of uric acid, found occasionally in human urine. 7,9-Dimethyluracil is one of the purine component in urinary calculi. Methylated purines originate from the metabolism of methylxanthines (caffeine, theophylline and theobromine). Methyluric acids are indistinguishable from uric acid by simple methods routinely used in clinical laboratories, requiring the use of high-performance liquid chromatography (HPLC). Purine derivatives in urinary calculi could be considered markers of abnormal purine metabolism. The content of a purine derivative in stone depends on its average urinary excretion in the general population, similarity to the chemical structure of uric acid, and content of the latter in stone. This suggests that purines in stones represent a solid solution with uric acid as solvent. It is also plausible that methylxanthines, ubiquitous components of the diet and drugs, are involved in the pathogenesis of urolithiasis. (PMID: 11712316 , 15833286 , 3506820 ).
Structure
Data?1676999820
Synonyms
ValueSource
7,9-DimethylateGenerator
7,9-Dimethylic acidGenerator
7,9-dihydro-7,9-Dimethyl-1H-purine-2,6,8(3H)-trioneHMDB
Chemical FormulaC7H8N4O3
Average Molecular Weight196.1634
Monoisotopic Molecular Weight196.059640142
IUPAC Name7,9-dimethyl-2,3,6,7,8,9-hexahydro-1H-purine-2,6,8-trione
Traditional Name7,9-dimethyl-1,3-dihydropurine-2,6,8-trione
CAS Registry Number19039-41-9
SMILES
CN1C(=O)N(C)C2=C1NC(=O)NC2=O
InChI Identifier
InChI=1S/C7H8N4O3/c1-10-3-4(11(2)7(10)14)8-6(13)9-5(3)12/h1-2H3,(H2,8,9,12,13)
InChI KeyZWFQLYWQCGUUNB-UHFFFAOYSA-N
Chemical Taxonomy
Description 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.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct ParentXanthines
Alternative Parents
Substituents
  • Xanthine
  • 6-oxopurine
  • Purinone
  • Alkaloid or derivatives
  • Pyrimidone
  • N-substituted imidazole
  • Pyrimidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Vinylogous amide
  • Lactam
  • Urea
  • Azacycle
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility10.1 g/LALOGPS
logP-0.74ALOGPS
logP-1.1ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)8.13ChemAxon
pKa (Strongest Basic)-6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area81.75 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity55.42 m³·mol⁻¹ChemAxon
Polarizability17.74 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+141.43131661259
DarkChem[M-H]-138.70931661259
DeepCCS[M+H]+134.95530932474
DeepCCS[M-H]-132.55930932474
DeepCCS[M-2H]-167.88530932474
DeepCCS[M+Na]+142.82730932474
AllCCS[M+H]+140.632859911
AllCCS[M+H-H2O]+136.432859911
AllCCS[M+NH4]+144.532859911
AllCCS[M+Na]+145.632859911
AllCCS[M-H]-139.532859911
AllCCS[M+Na-2H]-139.932859911
AllCCS[M+HCOO]-140.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
7,9-Dimethyluric acidCN1C(=O)N(C)C2=C1NC(=O)NC2=O2652.8Standard polar33892256
7,9-Dimethyluric acidCN1C(=O)N(C)C2=C1NC(=O)NC2=O2114.0Standard non polar33892256
7,9-Dimethyluric acidCN1C(=O)N(C)C2=C1NC(=O)NC2=O2354.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
7,9-Dimethyluric acid,1TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C1936.4Semi standard non polar33892256
7,9-Dimethyluric acid,1TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C2187.9Standard non polar33892256
7,9-Dimethyluric acid,1TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C2844.7Standard polar33892256
7,9-Dimethyluric acid,1TMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C)C2=O2055.7Semi standard non polar33892256
7,9-Dimethyluric acid,1TMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C)C2=O2200.7Standard non polar33892256
7,9-Dimethyluric acid,1TMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C)C2=O2877.4Standard polar33892256
7,9-Dimethyluric acid,2TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C1968.3Semi standard non polar33892256
7,9-Dimethyluric acid,2TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C2240.1Standard non polar33892256
7,9-Dimethyluric acid,2TMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C2473.8Standard polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C(C)(C)C2125.3Semi standard non polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C(C)(C)C2402.9Standard non polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)[NH]C(=O)N2[Si](C)(C)C(C)(C)C2793.8Standard polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C(C)(C)C)C2=O2217.1Semi standard non polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C(C)(C)C)C2=O2380.5Standard non polar33892256
7,9-Dimethyluric acid,1TBDMS,isomer #2CN1C(=O)N(C)C2=C1[NH]C(=O)N([Si](C)(C)C(C)(C)C)C2=O2832.7Standard polar33892256
7,9-Dimethyluric acid,2TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C2350.5Semi standard non polar33892256
7,9-Dimethyluric acid,2TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C2651.4Standard non polar33892256
7,9-Dimethyluric acid,2TBDMS,isomer #1CN1C(=O)N(C)C2=C1C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C2588.3Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 7,9-Dimethyluric acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0frj-1900000000-0ca606f04fe86d75dff52017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 7,9-Dimethyluric acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 10V, Positive-QTOFsplash10-0002-0900000000-2ba27f0d04e79d22194e2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 20V, Positive-QTOFsplash10-0005-1900000000-b5ec1dd3f43e24125b1f2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 40V, Positive-QTOFsplash10-05mn-9400000000-da2aef08b21645f5c3f32016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 10V, Negative-QTOFsplash10-0002-0900000000-f288ab8c813eef7d163a2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 20V, Negative-QTOFsplash10-0006-9400000000-01203c0b62f604b7c7962016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 40V, Negative-QTOFsplash10-0006-9300000000-fcde003c4ccadfa7c83c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 10V, Negative-QTOFsplash10-0002-0900000000-a6b85a9c2a5291dc1ba82021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 20V, Negative-QTOFsplash10-0f6w-2900000000-e661f2c8c99404e962a82021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 40V, Negative-QTOFsplash10-0006-9200000000-7b13266fe1ab5da73d8b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 10V, Positive-QTOFsplash10-0002-0900000000-0e499ff6f23e328dc54a2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 20V, Positive-QTOFsplash10-0002-0900000000-9f2e967cbd8645c3a2c42021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7,9-Dimethyluric acid 40V, Positive-QTOFsplash10-0002-9300000000-0a3e6b0a3a9fa4ba53202021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023362
KNApSAcK IDNot Available
Chemspider ID79311
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound87909
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Morris GS, Simmonds HA, Davies PM: Use of biological fluids for the rapid diagnosis of potentially lethal inherited disorders of human purine and pyrimidine metabolism. Biomed Chromatogr. 1986 Jun;1(3):109-18. [PubMed:3506820 ]
  2. Safranow K, Machoy Z: Simultaneous determination of 16 purine derivatives in urinary calculi by gradient reversed-phase high-performance liquid chromatography with UV detection. J Chromatogr B Analyt Technol Biomed Life Sci. 2005 May 25;819(2):229-35. [PubMed:15833286 ]
  3. Safranow K: [Identification and quantitation of purine derivatives in urinary calculi as markers of abnormal purine metabolism by using high-performance liquid chromatography (HPLC)]. Ann Acad Med Stetin. 2000;46:35-49. [PubMed:11712316 ]